early-access version 1432

externals/ffmpeg/tests/api/.gitignore

@@ -0,0 +1 @@
+/*-test

externals/ffmpeg/tests/api/Makefile

@@ -0,0 +1,22 @@
+APITESTPROGS-$(call ENCDEC, FLAC, FLAC) += api-flac
+APITESTPROGS-$(call DEMDEC, H264, H264) += api-h264
+APITESTPROGS-$(call DEMDEC, H264, H264) += api-h264-slice
+APITESTPROGS-yes += api-seek
+APITESTPROGS-yes += api-codec-param
+APITESTPROGS-$(call DEMDEC, H263, H263) += api-band
+APITESTPROGS-$(HAVE_THREADS) += api-threadmessage
+APITESTPROGS += $(APITESTPROGS-yes)
+
+APITESTOBJS  := $(APITESTOBJS:%=$(APITESTSDIR)%) $(APITESTPROGS:%=$(APITESTSDIR)/%-test.o)
+APITESTPROGS := $(APITESTPROGS:%=$(APITESTSDIR)/%-test$(EXESUF))
+-include $(wildcard $(APITESTOBJS:.o=.d))
+
+$(APITESTOBJS): | $(sort $(dir $(APITESTOBJS)))
+$(APITESTOBJS) $(APITESTOBJS:.o=.i): CPPFLAGS += -DTEST
+$(APITESTOBJS) $(APITESTOBJS:.o=.i): CFLAGS += -Umain
+
+$(APITESTPROGS): %$(EXESUF): %.o $(FF_DEP_LIBS)
+	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(filter %.o,$^) $(FF_EXTRALIBS) $(ELIBS)
+
+testclean::
+	$(RM) $(addprefix $(APITESTSDIR)/,$(CLEANSUFFIXES) *-test$(EXESUF))

externals/ffmpeg/tests/api/api-band-test.c

@@ -0,0 +1,221 @@
+/*
+ * Copyright (c) 2015 Ludmila Glinskih
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * draw_horiz_band test.
+ */
+
+#include "libavutil/adler32.h"
+#include "libavcodec/avcodec.h"
+#include "libavformat/avformat.h"
+#include "libavutil/imgutils.h"
+
+uint8_t *slice_byte_buffer;
+uint8_t slice_byte_buffer_size;
+int draw_horiz_band_called;
+
+static void draw_horiz_band(AVCodecContext *ctx, const AVFrame *fr, int offset[4],
+                            int slice_position, int type, int height)
+{
+    int i;
+    const AVPixFmtDescriptor *pix_fmt_desc;
+    int chroma_w, chroma_h;
+    int shift_slice_position;
+    int shift_height;
+
+    draw_horiz_band_called = 1;
+
+    pix_fmt_desc = av_pix_fmt_desc_get(ctx->pix_fmt);
+    chroma_w = -((-ctx->width) >> pix_fmt_desc->log2_chroma_w);
+    chroma_h = -((-height) >> pix_fmt_desc->log2_chroma_h);
+    shift_slice_position = -((-slice_position) >> pix_fmt_desc->log2_chroma_h);
+    shift_height = -((-ctx->height) >> pix_fmt_desc->log2_chroma_h);
+
+    for (i = 0; i < height; i++) {
+        memcpy(slice_byte_buffer + ctx->width * slice_position + i * ctx->width,
+               fr->data[0] + offset[0] + i * fr->linesize[0], ctx->width);
+    }
+    for (i = 0; i < chroma_h; i++) {
+        memcpy(slice_byte_buffer + ctx->width * ctx->height + chroma_w * shift_slice_position + i * chroma_w,
+               fr->data[1] + offset[1] + i * fr->linesize[1], chroma_w);
+    }
+    for (i = 0; i < chroma_h; i++) {
+        memcpy(slice_byte_buffer + ctx->width * ctx->height + chroma_w * shift_height + chroma_w * shift_slice_position + i * chroma_w,
+               fr->data[2] + offset[2] + i * fr->linesize[2], chroma_w);
+    }
+}
+
+static int video_decode(const char *input_filename)
+{
+    AVCodec *codec = NULL;
+    AVCodecContext *ctx= NULL;
+    AVCodecParameters *origin_par = NULL;
+    uint8_t *byte_buffer = NULL;
+    AVFrame *fr = NULL;
+    AVPacket pkt;
+    AVFormatContext *fmt_ctx = NULL;
+    int number_of_written_bytes;
+    int video_stream;
+    int got_frame = 0;
+    int byte_buffer_size;
+    int result;
+    int end_of_stream = 0;
+
+    draw_horiz_band_called = 0;
+
+    result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
+    if (result < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't open file\n");
+        return result;
+    }
+
+    result = avformat_find_stream_info(fmt_ctx, NULL);
+    if (result < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n");
+        return result;
+    }
+
+    video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
+    if (video_stream < 0) {
+      av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n");
+      return -1;
+    }
+
+    origin_par = fmt_ctx->streams[video_stream]->codecpar;
+
+    codec = avcodec_find_decoder(origin_par->codec_id);
+    if (!codec) {
+        av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
+        return -1;
+    }
+
+    ctx = avcodec_alloc_context3(codec);
+    if (!ctx) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n");
+        return AVERROR(ENOMEM);
+    }
+
+    result = avcodec_parameters_to_context(ctx, origin_par);
+    if (result) {
+        av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n");
+        return result;
+    }
+
+    ctx->draw_horiz_band = draw_horiz_band;
+    ctx->thread_count = 1;
+
+    result = avcodec_open2(ctx, codec, NULL);
+    if (result < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
+        return result;
+    }
+
+    fr = av_frame_alloc();
+    if (!fr) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n");
+        return AVERROR(ENOMEM);
+    }
+
+    if (strcmp(codec->name, "flv") && strcmp(codec->name, "mpeg4") && strcmp(codec->name, "huffyuv")) {
+        av_log(NULL, AV_LOG_ERROR, "Wrong codec\n");
+        return -1;
+    }
+
+    byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 32);
+    byte_buffer = av_malloc(byte_buffer_size);
+    if (!byte_buffer) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
+        return AVERROR(ENOMEM);
+    }
+
+    slice_byte_buffer = av_malloc(byte_buffer_size);
+    if (!slice_byte_buffer) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
+        return AVERROR(ENOMEM);
+    }
+    memset(slice_byte_buffer, 0, byte_buffer_size);
+    slice_byte_buffer_size = byte_buffer_size;
+
+    av_init_packet(&pkt);
+    do {
+        if (!end_of_stream) {
+            if (av_read_frame(fmt_ctx, &pkt) < 0) {
+                end_of_stream = 1;
+            }
+        }
+        if (end_of_stream) {
+            pkt.data = NULL;
+            pkt.size = 0;
+        }
+        if (pkt.stream_index == video_stream || end_of_stream) {
+            got_frame = 0;
+            result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt);
+            if (result < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
+                return result;
+            }
+            if (got_frame) {
+                number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
+                                        (const uint8_t* const *)fr->data, (const int*) fr->linesize,
+                                        ctx->pix_fmt, ctx->width, ctx->height, 1);
+                if (number_of_written_bytes < 0) {
+                    av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
+                    return number_of_written_bytes;
+                }
+                if (draw_horiz_band_called == 0) {
+                    av_log(NULL, AV_LOG_ERROR, "draw_horiz_band haven't been called!\n");
+                    return -1;
+                }
+                if (av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes) !=
+                    av_adler32_update(0, (const uint8_t*)slice_byte_buffer, number_of_written_bytes)) {
+                    av_log(NULL, AV_LOG_ERROR, "Decoded frames with and without draw_horiz_band are not the same!\n");
+                    return -1;
+                }
+            }
+            av_packet_unref(&pkt);
+            av_init_packet(&pkt);
+        }
+    } while (!end_of_stream || got_frame);
+
+    av_packet_unref(&pkt);
+    av_frame_free(&fr);
+    avcodec_close(ctx);
+    avformat_close_input(&fmt_ctx);
+    avcodec_free_context(&ctx);
+    av_freep(&byte_buffer);
+    av_freep(&slice_byte_buffer);
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    if (argc < 2)
+    {
+        av_log(NULL, AV_LOG_ERROR, "Incorrect input: expected %s <name of a video file>\nNote that test works only for huffyuv, flv and mpeg4 decoders\n", argv[0]);
+        return 1;
+    }
+
+    if (video_decode(argv[1]) != 0)
+        return 1;
+
+    return 0;
+}

externals/ffmpeg/tests/api/api-codec-param-test.c

@@ -0,0 +1,256 @@
+/*
+ * Copyright (c) 2015 Matthieu Bouron <matthieu.bouron stupeflix.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include "libavformat/avformat.h"
+#include "libavutil/pixdesc.h"
+#include "libavcodec/internal.h"
+#include "libavutil/avassert.h"
+#include "libavutil/opt.h"
+
+static int try_decode_video_frame(AVCodecContext *codec_ctx, AVPacket *pkt, int decode)
+{
+    int ret = 0;
+    int got_frame = 0;
+    AVFrame *frame = NULL;
+    int skip_frame = codec_ctx->skip_frame;
+
+    if (!avcodec_is_open(codec_ctx)) {
+        const AVCodec *codec = avcodec_find_decoder(codec_ctx->codec_id);
+
+        ret = avcodec_open2(codec_ctx, codec, NULL);
+        if (ret < 0) {
+            av_log(codec_ctx, AV_LOG_ERROR, "Failed to open codec\n");
+            goto end;
+        }
+    }
+
+    frame = av_frame_alloc();
+    if (!frame) {
+        av_log(NULL, AV_LOG_ERROR, "Failed to allocate frame\n");
+        goto end;
+    }
+
+    if (!decode && avpriv_codec_get_cap_skip_frame_fill_param(codec_ctx->codec)) {
+        codec_ctx->skip_frame = AVDISCARD_ALL;
+    }
+
+    do {
+        ret = avcodec_decode_video2(codec_ctx, frame, &got_frame, pkt);
+        av_assert0(decode || (!decode && !got_frame));
+        if (ret < 0)
+            break;
+        pkt->data += ret;
+        pkt->size -= ret;
+
+        if (got_frame) {
+            break;
+        }
+    } while (pkt->size > 0);
+
+end:
+    codec_ctx->skip_frame = skip_frame;
+
+    av_frame_free(&frame);
+    return ret;
+}
+
+static int find_video_stream_info(AVFormatContext *fmt_ctx, int decode)
+{
+    int ret = 0;
+    int i, done = 0;
+    AVPacket pkt;
+
+    av_init_packet(&pkt);
+
+    while (!done) {
+        AVCodecContext *codec_ctx = NULL;
+        AVStream *st;
+
+        if ((ret = av_read_frame(fmt_ctx, &pkt)) < 0) {
+            av_log(fmt_ctx, AV_LOG_ERROR, "Failed to read frame\n");
+            goto end;
+        }
+
+        st = fmt_ctx->streams[pkt.stream_index];
+        codec_ctx = st->codec;
+
+        /* Writing to AVStream.codec_info_nb_frames must not be done by
+         * user applications. It is done here for testing purposing as
+         * find_video_stream_info tries to mimic avformat_find_stream_info
+         * which writes to this field.
+         * */
+        if (codec_ctx->codec_type != AVMEDIA_TYPE_VIDEO ||
+            st->codec_info_nb_frames++ > 0) {
+            av_packet_unref(&pkt);
+            continue;
+        }
+
+        ret = try_decode_video_frame(codec_ctx, &pkt, decode);
+        if (ret < 0) {
+            av_log(fmt_ctx, AV_LOG_ERROR, "Failed to decode video frame\n");
+            goto end;
+        }
+
+        av_packet_unref(&pkt);
+
+        /* check if all video streams have demuxed a packet */
+        done = 1;
+        for (i = 0; i < fmt_ctx->nb_streams; i++) {
+            st = fmt_ctx->streams[i];
+            codec_ctx = st->codec;
+
+            if (codec_ctx->codec_type != AVMEDIA_TYPE_VIDEO)
+                continue;
+
+            done &= st->codec_info_nb_frames > 0;
+        }
+    }
+
+end:
+    av_packet_unref(&pkt);
+
+    /* close all codecs opened in try_decode_video_frame */
+    for (i = 0; i < fmt_ctx->nb_streams; i++) {
+        AVStream *st = fmt_ctx->streams[i];
+        avcodec_close(st->codec);
+    }
+
+    return ret < 0;
+}
+
+static void dump_video_streams(const AVFormatContext *fmt_ctx, int decode)
+{
+    int i;
+
+    for (i = 0; i < fmt_ctx->nb_streams; i++) {
+        const AVOption *opt = NULL;
+        const AVStream *st = fmt_ctx->streams[i];
+        AVCodecContext *codec_ctx = st->codec;
+
+        printf("stream=%d, decode=%d\n", i, decode);
+        while (opt = av_opt_next(codec_ctx, opt)) {
+            uint8_t *str;
+
+            if (opt->type == AV_OPT_TYPE_CONST)
+                continue;
+
+            if (!strcmp(opt->name, "frame_number"))
+                continue;
+
+            if (av_opt_get(codec_ctx, opt->name, 0, &str) >= 0) {
+                printf("    %s=%s\n", opt->name, str);
+                av_free(str);
+            }
+        }
+    }
+}
+
+static int open_and_probe_video_streams(AVFormatContext **fmt_ctx, const char *filename, int decode)
+{
+    int ret = 0;
+
+    ret = avformat_open_input(fmt_ctx, filename, NULL, NULL);
+    if (ret < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Failed to open input '%s'", filename);
+        goto end;
+    }
+
+    ret = find_video_stream_info(*fmt_ctx, decode);
+    if (ret < 0) {
+        goto end;
+    }
+
+    dump_video_streams(*fmt_ctx, decode);
+
+end:
+    return ret;
+}
+
+static int check_video_streams(const AVFormatContext *fmt_ctx1, const AVFormatContext *fmt_ctx2)
+{
+    int i;
+    int ret = 0;
+
+    av_assert0(fmt_ctx1->nb_streams == fmt_ctx2->nb_streams);
+    for (i = 0; i < fmt_ctx1->nb_streams; i++) {
+        const AVOption *opt = NULL;
+        const AVStream *st1 = fmt_ctx1->streams[i];
+        const AVStream *st2 = fmt_ctx2->streams[i];
+        AVCodecContext *codec_ctx1 = st1->codec;
+        AVCodecContext *codec_ctx2 = st2->codec;
+
+        if (codec_ctx1->codec_type != AVMEDIA_TYPE_VIDEO)
+            continue;
+
+        while (opt = av_opt_next(codec_ctx1, opt)) {
+            uint8_t *str1 = NULL, *str2 = NULL;
+
+            if (opt->type == AV_OPT_TYPE_CONST)
+                continue;
+
+            if (!strcmp(opt->name, "frame_number"))
+                continue;
+
+            av_assert0(av_opt_get(codec_ctx1, opt->name, 0, &str1) >= 0);
+            av_assert0(av_opt_get(codec_ctx2, opt->name, 0, &str2) >= 0);
+            if (strcmp(str1, str2)) {
+                av_log(NULL, AV_LOG_ERROR, "Field %s differs: %s %s", opt->name, str1, str2);
+                ret = AVERROR(EINVAL);
+            }
+            av_free(str1);
+            av_free(str2);
+        }
+    }
+
+    return ret;
+}
+
+int main(int argc, char* argv[])
+{
+    int ret = 0;
+    AVFormatContext *fmt_ctx = NULL;
+    AVFormatContext *fmt_ctx_no_decode = NULL;
+
+    if (argc < 2) {
+        av_log(NULL, AV_LOG_ERROR, "Usage: %s <input>\n", argv[0]);
+        return -1;
+    }
+
+    if ((ret = open_and_probe_video_streams(&fmt_ctx_no_decode, argv[1], 0)) < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Failed to probe '%s' without frame decoding\n", argv[1]);
+        goto end;
+    }
+
+    if ((ret = open_and_probe_video_streams(&fmt_ctx, argv[1], 1)) < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Failed to probe '%s' with frame decoding\n", argv[1]);
+        goto end;
+    }
+
+    ret = check_video_streams(fmt_ctx, fmt_ctx_no_decode);
+
+end:
+    avformat_close_input(&fmt_ctx);
+    avformat_close_input(&fmt_ctx_no_decode);
+
+    return ret;
+}

externals/ffmpeg/tests/api/api-flac-test.c

@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2015 Ludmila Glinskih
+ * Copyright (c) 2001 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/*
+ * FLAC codec test.
+ * Encodes raw data to FLAC format and decodes it back to raw. Compares raw-data
+ * after that.
+ */
+
+#include "libavcodec/avcodec.h"
+#include "libavutil/common.h"
+#include "libavutil/samplefmt.h"
+
+#define NUMBER_OF_AUDIO_FRAMES 200
+#define NAME_BUFF_SIZE 100
+
+/* generate i-th frame of test audio */
+static int generate_raw_frame(uint16_t *frame_data, int i, int sample_rate,
+                              int channels, int frame_size)
+{
+    int j, k;
+
+    for (j = 0; j < frame_size; j++) {
+        frame_data[channels * j] = 10000 * ((j / 10 * i) % 2);
+        for (k = 1; k < channels; k++)
+            frame_data[channels * j + k] = frame_data[channels * j] * (k + 1);
+    }
+    return 0;
+}
+
+static int init_encoder(AVCodec *enc, AVCodecContext **enc_ctx,
+                        int64_t ch_layout, int sample_rate)
+{
+    AVCodecContext *ctx;
+    int result;
+    char name_buff[NAME_BUFF_SIZE];
+
+    av_get_channel_layout_string(name_buff, NAME_BUFF_SIZE, 0, ch_layout);
+    av_log(NULL, AV_LOG_INFO, "channel layout: %s, sample rate: %i\n", name_buff, sample_rate);
+
+    ctx = avcodec_alloc_context3(enc);
+    if (!ctx) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate encoder context\n");
+        return AVERROR(ENOMEM);
+    }
+
+    ctx->sample_fmt = AV_SAMPLE_FMT_S16;
+    ctx->sample_rate = sample_rate;
+    ctx->channel_layout = ch_layout;
+
+    result = avcodec_open2(ctx, enc, NULL);
+    if (result < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Can't open encoder\n");
+        return result;
+    }
+
+    *enc_ctx = ctx;
+    return 0;
+}
+
+static int init_decoder(AVCodec *dec, AVCodecContext **dec_ctx,
+                        int64_t ch_layout)
+{
+    AVCodecContext *ctx;
+    int result;
+
+    ctx = avcodec_alloc_context3(dec);
+    if (!ctx) {
+        av_log(NULL, AV_LOG_ERROR , "Can't allocate decoder context\n");
+        return AVERROR(ENOMEM);
+    }
+
+    ctx->request_sample_fmt = AV_SAMPLE_FMT_S16;
+    /* XXX: FLAC ignores it for some reason */
+    ctx->request_channel_layout = ch_layout;
+    ctx->channel_layout = ch_layout;
+
+    result = avcodec_open2(ctx, dec, NULL);
+    if (result < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
+        return result;
+    }
+
+    *dec_ctx = ctx;
+    return 0;
+}
+
+static int run_test(AVCodec *enc, AVCodec *dec, AVCodecContext *enc_ctx,
+                    AVCodecContext *dec_ctx)
+{
+    AVPacket enc_pkt;
+    AVFrame *in_frame, *out_frame;
+    uint8_t *raw_in = NULL, *raw_out = NULL;
+    int in_offset = 0, out_offset = 0;
+    int result = 0;
+    int got_output = 0;
+    int i = 0;
+    int in_frame_bytes, out_frame_bytes;
+
+    in_frame = av_frame_alloc();
+    if (!in_frame) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate input frame\n");
+        return AVERROR(ENOMEM);
+    }
+
+    in_frame->nb_samples = enc_ctx->frame_size;
+    in_frame->format = enc_ctx->sample_fmt;
+    in_frame->channel_layout = enc_ctx->channel_layout;
+    if (av_frame_get_buffer(in_frame, 0) != 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate a buffer for input frame\n");
+        return AVERROR(ENOMEM);
+    }
+
+    out_frame = av_frame_alloc();
+    if (!out_frame) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate output frame\n");
+        return AVERROR(ENOMEM);
+    }
+
+    raw_in = av_malloc(in_frame->linesize[0] * NUMBER_OF_AUDIO_FRAMES);
+    if (!raw_in) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate memory for raw_in\n");
+        return AVERROR(ENOMEM);
+    }
+
+    raw_out = av_malloc(in_frame->linesize[0] * NUMBER_OF_AUDIO_FRAMES);
+    if (!raw_out) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate memory for raw_out\n");
+        return AVERROR(ENOMEM);
+    }
+
+    for (i = 0; i < NUMBER_OF_AUDIO_FRAMES; i++) {
+        av_init_packet(&enc_pkt);
+        enc_pkt.data = NULL;
+        enc_pkt.size = 0;
+
+        generate_raw_frame((uint16_t*)(in_frame->data[0]), i, enc_ctx->sample_rate,
+                           enc_ctx->channels, enc_ctx->frame_size);
+        in_frame_bytes = in_frame->nb_samples * in_frame->channels * sizeof(uint16_t);
+        if (in_frame_bytes > in_frame->linesize[0]) {
+            av_log(NULL, AV_LOG_ERROR, "Incorrect value of input frame linesize\n");
+            return 1;
+        }
+        memcpy(raw_in + in_offset, in_frame->data[0], in_frame_bytes);
+        in_offset += in_frame_bytes;
+        result = avcodec_encode_audio2(enc_ctx, &enc_pkt, in_frame, &got_output);
+        if (result < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Error encoding audio frame\n");
+            return result;
+        }
+
+        /* if we get an encoded packet, feed it straight to the decoder */
+        if (got_output) {
+            result = avcodec_decode_audio4(dec_ctx, out_frame, &got_output, &enc_pkt);
+            if (result < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Error decoding audio packet\n");
+                return result;
+            }
+
+            if (got_output) {
+                if (result != enc_pkt.size) {
+                    av_log(NULL, AV_LOG_INFO, "Decoder consumed only part of a packet, it is allowed to do so -- need to update this test\n");
+                    return AVERROR_UNKNOWN;
+                }
+
+                if (in_frame->nb_samples != out_frame->nb_samples) {
+                    av_log(NULL, AV_LOG_ERROR, "Error frames before and after decoding has different number of samples\n");
+                    return AVERROR_UNKNOWN;
+                }
+
+                if (in_frame->channel_layout != out_frame->channel_layout) {
+                    av_log(NULL, AV_LOG_ERROR, "Error frames before and after decoding has different channel layout\n");
+                    return AVERROR_UNKNOWN;
+                }
+
+                if (in_frame->format != out_frame->format) {
+                    av_log(NULL, AV_LOG_ERROR, "Error frames before and after decoding has different sample format\n");
+                    return AVERROR_UNKNOWN;
+                }
+                out_frame_bytes = out_frame->nb_samples * out_frame->channels * sizeof(uint16_t);
+                if (out_frame_bytes > out_frame->linesize[0]) {
+                    av_log(NULL, AV_LOG_ERROR, "Incorrect value of output frame linesize\n");
+                    return 1;
+                }
+                memcpy(raw_out + out_offset, out_frame->data[0], out_frame_bytes);
+                out_offset += out_frame_bytes;
+            }
+        }
+        av_packet_unref(&enc_pkt);
+    }
+
+    if (memcmp(raw_in, raw_out, out_frame_bytes * NUMBER_OF_AUDIO_FRAMES) != 0) {
+        av_log(NULL, AV_LOG_ERROR, "Output differs\n");
+        return 1;
+    }
+
+    av_log(NULL, AV_LOG_INFO, "OK\n");
+
+    av_freep(&raw_in);
+    av_freep(&raw_out);
+    av_frame_free(&in_frame);
+    av_frame_free(&out_frame);
+    return 0;
+}
+
+static int close_encoder(AVCodecContext **enc_ctx)
+{
+    avcodec_close(*enc_ctx);
+    av_freep(enc_ctx);
+    return 0;
+}
+
+static int close_decoder(AVCodecContext **dec_ctx)
+{
+    avcodec_close(*dec_ctx);
+    av_freep(dec_ctx);
+    return 0;
+}
+
+int main(void)
+{
+    AVCodec *enc = NULL, *dec = NULL;
+    AVCodecContext *enc_ctx = NULL, *dec_ctx = NULL;
+    uint64_t channel_layouts[] = {AV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_5POINT1_BACK, AV_CH_LAYOUT_SURROUND, AV_CH_LAYOUT_STEREO_DOWNMIX};
+    int sample_rates[] = {8000, 44100, 48000, 192000};
+    int cl, sr;
+
+    enc = avcodec_find_encoder(AV_CODEC_ID_FLAC);
+    if (!enc) {
+        av_log(NULL, AV_LOG_ERROR, "Can't find encoder\n");
+        return 1;
+    }
+
+    dec = avcodec_find_decoder(AV_CODEC_ID_FLAC);
+    if (!dec) {
+        av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
+        return 1;
+    }
+
+    for (cl = 0; cl < FF_ARRAY_ELEMS(channel_layouts); cl++) {
+        for (sr = 0; sr < FF_ARRAY_ELEMS(sample_rates); sr++) {
+            if (init_encoder(enc, &enc_ctx, channel_layouts[cl], sample_rates[sr]) != 0)
+                return 1;
+            if (init_decoder(dec, &dec_ctx, channel_layouts[cl]) != 0)
+                return 1;
+            if (run_test(enc, dec, enc_ctx, dec_ctx) != 0)
+                return 1;
+            close_encoder(&enc_ctx);
+            close_decoder(&dec_ctx);
+        }
+    }
+
+    return 0;
+}

externals/ffmpeg/tests/api/api-h264-slice-test.c

@@ -0,0 +1,237 @@
+/*
+ * Copyright (c) 2001 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#define MAX_SLICES 8
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "libavcodec/avcodec.h"
+#include "libavutil/pixdesc.h"
+#include "libavutil/hash.h"
+#include "libavutil/bswap.h"
+
+static int header = 0;
+
+static int decode(AVCodecContext *dec_ctx, AVFrame *frame,
+           AVPacket *pkt)
+{
+    static uint64_t frame_cnt = 0;
+    int ret;
+
+    ret = avcodec_send_packet(dec_ctx, pkt);
+    if (ret < 0) {
+        fprintf(stderr, "Error sending a packet for decoding: %s\n", av_err2str(ret));
+        return ret;
+    }
+
+    while (ret >= 0) {
+        const AVPixFmtDescriptor *desc;
+        char sum[AV_HASH_MAX_SIZE * 2 + 1];
+        struct AVHashContext *hash;
+
+        ret = avcodec_receive_frame(dec_ctx, frame);
+        if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) {
+            return 0;
+        } else if (ret < 0) {
+            fprintf(stderr, "Error during decoding: %s\n", av_err2str(ret));
+            return ret;
+        }
+
+        if (!header) {
+            printf(
+            "#format: frame checksums\n"
+            "#version: 2\n"
+            "#hash: MD5\n"
+            "#tb 0: 1/30\n"
+            "#media_type 0: video\n"
+            "#codec_id 0: rawvideo\n"
+            "#dimensions 0: 352x288\n"
+            "#sar 0: 128/117\n"
+            "#stream#, dts,        pts, duration,     size, hash\n");
+            header = 1;
+        }
+        desc = av_pix_fmt_desc_get(dec_ctx->pix_fmt);
+        if ((ret = av_hash_alloc(&hash, "md5")) < 0) {
+            return ret;
+        }
+        av_hash_init(hash);
+
+        for (int i = 0; i < frame->height; i++)
+            av_hash_update(hash, &frame->data[0][i * frame->linesize[0]], frame->width);
+        for (int i = 0; i < frame->height >> desc->log2_chroma_h; i++)
+            av_hash_update(hash, &frame->data[1][i * frame->linesize[1]], frame->width >> desc->log2_chroma_w);
+        for (int i = 0; i < frame->height >> desc->log2_chroma_h; i++)
+            av_hash_update(hash, &frame->data[2][i * frame->linesize[2]], frame->width >> desc->log2_chroma_w);
+
+        av_hash_final_hex(hash, sum, av_hash_get_size(hash) * 2 + 1);
+        printf("0, %10"PRId64", %10"PRId64",        1, %8d, %s\n",
+            frame_cnt, frame_cnt,
+            (frame->width * frame->height + 2 * (frame->height >> desc->log2_chroma_h) * (frame->width >> desc->log2_chroma_w)), sum);
+        frame_cnt += 1;
+        av_hash_freep(&hash);
+    }
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    const AVCodec *codec = NULL;
+    AVCodecContext *c = NULL;
+    AVFrame *frame = NULL;
+    unsigned int threads;
+    AVPacket *pkt;
+    FILE *file = NULL;
+    char * nal = NULL;
+    int nals = 0, ret = 0;
+    char *p;
+
+    if (argc < 3) {
+        fprintf(stderr, "Usage: %s <threads> <input file>\n", argv[0]);
+        return -1;
+    }
+
+    if (!(threads = strtoul(argv[1], NULL, 0)))
+        threads = 1;
+    else if (threads > MAX_SLICES)
+        threads = MAX_SLICES;
+
+#ifdef _WIN32
+    setmode(fileno(stdout), O_BINARY);
+#endif
+
+    if (!(pkt = av_packet_alloc())) {
+        return -1;
+    }
+
+    nal = av_malloc(MAX_SLICES * UINT16_MAX + AV_INPUT_BUFFER_PADDING_SIZE);
+    if (!nal)
+        goto err;
+    p = nal;
+
+    if (!(codec = avcodec_find_decoder(AV_CODEC_ID_H264))) {
+        fprintf(stderr, "Codec not found\n");
+        ret = -1;
+        goto err;
+    }
+
+    if (!(c = avcodec_alloc_context3(codec))) {
+        fprintf(stderr, "Could not allocate video codec context\n");
+        ret = -1;
+        goto err;
+    }
+
+    c->width  = 352;
+    c->height = 288;
+
+    c->flags2 |= AV_CODEC_FLAG2_CHUNKS;
+    c->thread_type = FF_THREAD_SLICE;
+    c->thread_count = threads;
+
+    if ((ret = avcodec_open2(c, codec, NULL)) < 0) {
+        fprintf(stderr, "Could not open codec\n");
+        goto err;
+    }
+
+#if HAVE_THREADS
+    if (c->active_thread_type != FF_THREAD_SLICE) {
+        fprintf(stderr, "Couldn't activate slice threading: %d\n", c->active_thread_type);
+        ret = -1;
+        goto err;
+    }
+#else
+    fprintf(stderr, "WARN: not using threads, only checking decoding slice NALUs\n");
+#endif
+
+    if (!(frame = av_frame_alloc())) {
+        fprintf(stderr, "Could not allocate video frame\n");
+        ret = -1;
+        goto err;
+    }
+
+    if (!(file = fopen(argv[2], "rb"))) {
+        fprintf(stderr, "Couldn't open NALU file: %s\n", argv[2]);
+        ret = -1;
+        goto err;
+    }
+
+    while(1) {
+        uint16_t size = 0;
+        size_t ret = fread(&size, 1, sizeof(uint16_t), file);
+        if (ret != sizeof(uint16_t))
+            break;
+
+        size = av_be2ne16(size);
+        ret = fread(p, 1, size, file);
+        if (ret != size) {
+            perror("Couldn't read data");
+            goto err;
+        }
+        p += ret;
+
+        if (++nals >= threads) {
+            int decret = 0;
+            pkt->data = nal;
+            pkt->size = p - nal;
+            if ((decret = decode(c, frame, pkt)) < 0) {
+                goto err;
+            }
+            memset(nal, 0, MAX_SLICES * UINT16_MAX + AV_INPUT_BUFFER_PADDING_SIZE);
+            nals = 0;
+            p = nal;
+        }
+    }
+
+    if (nals) {
+        pkt->data = nal;
+        pkt->size = p - nal;
+        if ((ret = decode(c, frame, pkt)) < 0) {
+            goto err;
+        }
+    }
+
+    ret = decode(c, frame, NULL);
+
+err:
+    if (nal)
+        av_free(nal);
+    if (file)
+        fclose(file);
+    av_frame_free(&frame);
+    avcodec_free_context(&c);
+    av_packet_free(&pkt);
+
+    return ret;
+}

externals/ffmpeg/tests/api/api-h264-test.c

@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2015 Ludmila Glinskih
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * H264 codec test.
+ */
+
+#include "libavutil/adler32.h"
+#include "libavcodec/avcodec.h"
+#include "libavformat/avformat.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/timestamp.h"
+
+static int video_decode_example(const char *input_filename)
+{
+    AVCodec *codec = NULL;
+    AVCodecContext *ctx= NULL;
+    AVCodecParameters *origin_par = NULL;
+    AVFrame *fr = NULL;
+    uint8_t *byte_buffer = NULL;
+    AVPacket pkt;
+    AVFormatContext *fmt_ctx = NULL;
+    int number_of_written_bytes;
+    int video_stream;
+    int got_frame = 0;
+    int byte_buffer_size;
+    int i = 0;
+    int result;
+    int end_of_stream = 0;
+
+    result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
+    if (result < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't open file\n");
+        return result;
+    }
+
+    result = avformat_find_stream_info(fmt_ctx, NULL);
+    if (result < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n");
+        return result;
+    }
+
+    video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
+    if (video_stream < 0) {
+      av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n");
+      return -1;
+    }
+
+    origin_par = fmt_ctx->streams[video_stream]->codecpar;
+
+    codec = avcodec_find_decoder(origin_par->codec_id);
+    if (!codec) {
+        av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
+        return -1;
+    }
+
+    ctx = avcodec_alloc_context3(codec);
+    if (!ctx) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n");
+        return AVERROR(ENOMEM);
+    }
+
+    result = avcodec_parameters_to_context(ctx, origin_par);
+    if (result) {
+        av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n");
+        return result;
+    }
+
+    result = avcodec_open2(ctx, codec, NULL);
+    if (result < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
+        return result;
+    }
+
+    fr = av_frame_alloc();
+    if (!fr) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n");
+        return AVERROR(ENOMEM);
+    }
+
+    byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16);
+    byte_buffer = av_malloc(byte_buffer_size);
+    if (!byte_buffer) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
+        return AVERROR(ENOMEM);
+    }
+
+    printf("#tb %d: %d/%d\n", video_stream, fmt_ctx->streams[video_stream]->time_base.num, fmt_ctx->streams[video_stream]->time_base.den);
+    i = 0;
+    av_init_packet(&pkt);
+    do {
+        if (!end_of_stream)
+            if (av_read_frame(fmt_ctx, &pkt) < 0)
+                end_of_stream = 1;
+        if (end_of_stream) {
+            pkt.data = NULL;
+            pkt.size = 0;
+        }
+        if (pkt.stream_index == video_stream || end_of_stream) {
+            got_frame = 0;
+            if (pkt.pts == AV_NOPTS_VALUE)
+                pkt.pts = pkt.dts = i;
+            result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt);
+            if (result < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
+                return result;
+            }
+            if (got_frame) {
+                number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
+                                        (const uint8_t* const *)fr->data, (const int*) fr->linesize,
+                                        ctx->pix_fmt, ctx->width, ctx->height, 1);
+                if (number_of_written_bytes < 0) {
+                    av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
+                    return number_of_written_bytes;
+                }
+                printf("%d, %s, %s, %8"PRId64", %8d, 0x%08lx\n", video_stream,
+                       av_ts2str(fr->pts), av_ts2str(fr->pkt_dts), fr->pkt_duration,
+                       number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes));
+            }
+            av_packet_unref(&pkt);
+            av_init_packet(&pkt);
+        }
+        i++;
+    } while (!end_of_stream || got_frame);
+
+    av_packet_unref(&pkt);
+    av_frame_free(&fr);
+    avcodec_close(ctx);
+    avformat_close_input(&fmt_ctx);
+    avcodec_free_context(&ctx);
+    av_freep(&byte_buffer);
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    if (argc < 2)
+    {
+        av_log(NULL, AV_LOG_ERROR, "Incorrect input\n");
+        return 1;
+    }
+
+    if (video_decode_example(argv[1]) != 0)
+        return 1;
+
+    return 0;
+}

externals/ffmpeg/tests/api/api-seek-test.c

@@ -0,0 +1,286 @@
+/*
+ * Copyright (c) 2015 Ludmila Glinskih
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * Seek test.
+ */
+
+#include "libavutil/adler32.h"
+#include "libavcodec/avcodec.h"
+#include "libavformat/avformat.h"
+#include "libavutil/imgutils.h"
+
+int64_t *pts_array;
+uint32_t *crc_array;
+int size_of_array;
+int number_of_elements;
+
+static int add_crc_to_array(uint32_t crc, int64_t pts)
+{
+    if (size_of_array <= number_of_elements) {
+        if (size_of_array == 0)
+            size_of_array = 10;
+        size_of_array *= 2;
+        crc_array = av_realloc_f(crc_array, size_of_array, sizeof(uint32_t));
+        pts_array = av_realloc_f(pts_array, size_of_array, sizeof(int64_t));
+        if ((crc_array == NULL) || (pts_array == NULL)) {
+            av_log(NULL, AV_LOG_ERROR, "Can't allocate array to store crcs\n");
+            return AVERROR(ENOMEM);
+        }
+    }
+    crc_array[number_of_elements] = crc;
+    pts_array[number_of_elements] = pts;
+    number_of_elements++;
+    return 0;
+}
+
+static int compare_crc_in_array(uint32_t crc, int64_t pts)
+{
+    int i;
+    for (i = 0; i < number_of_elements; i++) {
+        if (pts_array[i] == pts) {
+            if (crc_array[i] == crc) {
+                printf("Comparing 0x%08"PRIx32" %"PRId64" %d is OK\n", crc, pts, i);
+                return 0;
+            }
+            else {
+                av_log(NULL, AV_LOG_ERROR, "Incorrect crc of a frame after seeking\n");
+                return -1;
+            }
+        }
+    }
+    av_log(NULL, AV_LOG_ERROR, "Incorrect pts of a frame after seeking\n");
+    return -1;
+}
+
+static int compute_crc_of_packets(AVFormatContext *fmt_ctx, int video_stream,
+                                AVCodecContext *ctx, AVFrame *fr, uint64_t ts_start, uint64_t ts_end, int no_seeking)
+{
+    int number_of_written_bytes;
+    int got_frame = 0;
+    int result;
+    int end_of_stream = 0;
+    int byte_buffer_size;
+    uint8_t *byte_buffer;
+    uint32_t crc;
+    AVPacket pkt;
+
+    byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16);
+    byte_buffer = av_malloc(byte_buffer_size);
+    if (!byte_buffer) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n");
+        return AVERROR(ENOMEM);
+    }
+
+    if (!no_seeking) {
+        result = av_seek_frame(fmt_ctx, video_stream, ts_start, AVSEEK_FLAG_ANY);
+        printf("Seeking to %"PRId64", computing crc for frames with pts < %"PRId64"\n", ts_start, ts_end);
+        if (result < 0) {
+            av_log(NULL, AV_LOG_ERROR, "Error in seeking\n");
+            return result;
+        }
+        avcodec_flush_buffers(ctx);
+    }
+
+    av_init_packet(&pkt);
+    do {
+        if (!end_of_stream)
+            if (av_read_frame(fmt_ctx, &pkt) < 0)
+                end_of_stream = 1;
+        if (end_of_stream) {
+            pkt.data = NULL;
+            pkt.size = 0;
+        }
+        if (pkt.stream_index == video_stream || end_of_stream) {
+            got_frame = 0;
+            if ((pkt.pts == AV_NOPTS_VALUE) && (!end_of_stream)) {
+                av_log(NULL, AV_LOG_ERROR, "Error: frames doesn't have pts values\n");
+                return -1;
+            }
+            result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt);
+            if (result < 0) {
+                av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n");
+                return result;
+            }
+            if (got_frame) {
+                number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size,
+                                        (const uint8_t* const *)fr->data, (const int*) fr->linesize,
+                                        ctx->pix_fmt, ctx->width, ctx->height, 1);
+                if (number_of_written_bytes < 0) {
+                    av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n");
+                    return number_of_written_bytes;
+                }
+                if ((!no_seeking) && (fr->pts > ts_end))
+                    break;
+                crc = av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes);
+                printf("%10"PRId64", 0x%08"PRIx32"\n", fr->pts, crc);
+                if (no_seeking) {
+                    if (add_crc_to_array(crc, fr->pts) < 0)
+                        return -1;
+                }
+                else {
+                    if (compare_crc_in_array(crc, fr->pts) < 0)
+                        return -1;
+                }
+            }
+        }
+        av_packet_unref(&pkt);
+        av_init_packet(&pkt);
+    } while ((!end_of_stream || got_frame) && (no_seeking || (fr->pts + fr->pkt_duration <= ts_end)));
+
+    av_packet_unref(&pkt);
+    av_freep(&byte_buffer);
+
+    return 0;
+}
+
+static long int read_seek_range(const char *string_with_number)
+{
+    long int number;
+    char *end_of_string = NULL;
+    number = strtol(string_with_number, &end_of_string, 10);
+    if ((strlen(string_with_number) != end_of_string - string_with_number)  || (number < 0)) {
+        av_log(NULL, AV_LOG_ERROR, "Incorrect input ranges of seeking\n");
+        return -1;
+    }
+    else if ((number == LONG_MAX) || (number == LONG_MIN)) {
+        if (errno == ERANGE) {
+            av_log(NULL, AV_LOG_ERROR, "Incorrect input ranges of seeking\n");
+            return -1;
+        }
+    }
+    return number;
+}
+
+static int seek_test(const char *input_filename, const char *start, const char *end)
+{
+    AVCodec *codec = NULL;
+    AVCodecContext *ctx= NULL;
+    AVCodecParameters *origin_par = NULL;
+    AVFrame *fr = NULL;
+    AVFormatContext *fmt_ctx = NULL;
+    int video_stream;
+    int result;
+    int i, j;
+    long int start_ts, end_ts;
+
+    size_of_array = 0;
+    number_of_elements = 0;
+    crc_array = NULL;
+    pts_array = NULL;
+
+    result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL);
+    if (result < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't open file\n");
+        return result;
+    }
+
+    result = avformat_find_stream_info(fmt_ctx, NULL);
+    if (result < 0) {
+        av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n");
+        goto end;
+    }
+
+    start_ts = read_seek_range(start);
+    end_ts = read_seek_range(end);
+    if ((start_ts < 0) || (end_ts < 0)) {
+        result = -1;
+        goto end;
+    }
+
+    //TODO: add ability to work with audio format
+    video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
+    if (video_stream < 0) {
+      av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n");
+      result = video_stream;
+      goto end;
+    }
+
+    origin_par = fmt_ctx->streams[video_stream]->codecpar;
+
+    codec = avcodec_find_decoder(origin_par->codec_id);
+    if (!codec) {
+        av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n");
+        result = AVERROR_DECODER_NOT_FOUND;
+        goto end;
+    }
+
+    ctx = avcodec_alloc_context3(codec);
+    if (!ctx) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n");
+        result = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    result = avcodec_parameters_to_context(ctx, origin_par);
+    if (result) {
+        av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n");
+        goto end;
+    }
+
+    result = avcodec_open2(ctx, codec, NULL);
+    if (result < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n");
+        goto end;
+    }
+
+    fr = av_frame_alloc();
+    if (!fr) {
+        av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n");
+        result = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, fr, 0, 0, 1);
+    if (result != 0)
+        goto end;
+
+    for (i = start_ts; i < end_ts; i += 100) {
+        for (j = i + 100; j < end_ts; j += 100) {
+            result = compute_crc_of_packets(fmt_ctx, video_stream, ctx, fr, i, j, 0);
+            if (result != 0)
+                break;
+        }
+    }
+
+end:
+    av_freep(&crc_array);
+    av_freep(&pts_array);
+    av_frame_free(&fr);
+    avcodec_close(ctx);
+    avformat_close_input(&fmt_ctx);
+    avcodec_free_context(&ctx);
+    return result;
+}
+
+int main(int argc, char **argv)
+{
+    if (argc < 4) {
+        av_log(NULL, AV_LOG_ERROR, "Incorrect input\n");
+        return 1;
+    }
+
+    if (seek_test(argv[1], argv[2], argv[3]) != 0)
+        return 1;
+
+    return 0;
+}

externals/ffmpeg/tests/api/api-threadmessage-test.c

@@ -0,0 +1,262 @@
+/*
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * Thread message API test
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/avstring.h"
+#include "libavutil/frame.h"
+#include "libavutil/threadmessage.h"
+#include "libavutil/thread.h" // not public
+
+struct sender_data {
+    int id;
+    pthread_t tid;
+    int workload;
+    AVThreadMessageQueue *queue;
+};
+
+/* same as sender_data but shuffled for testing purpose */
+struct receiver_data {
+    pthread_t tid;
+    int workload;
+    int id;
+    AVThreadMessageQueue *queue;
+};
+
+struct message {
+    AVFrame *frame;
+    // we add some junk in the message to make sure the message size is >
+    // sizeof(void*)
+    int magic;
+};
+
+#define MAGIC 0xdeadc0de
+
+static void free_frame(void *arg)
+{
+    struct message *msg = arg;
+    av_assert0(msg->magic == MAGIC);
+    av_frame_free(&msg->frame);
+}
+
+static void *sender_thread(void *arg)
+{
+    int i, ret = 0;
+    struct sender_data *wd = arg;
+
+    av_log(NULL, AV_LOG_INFO, "sender #%d: workload=%d\n", wd->id, wd->workload);
+    for (i = 0; i < wd->workload; i++) {
+        if (rand() % wd->workload < wd->workload / 10) {
+            av_log(NULL, AV_LOG_INFO, "sender #%d: flushing the queue\n", wd->id);
+            av_thread_message_flush(wd->queue);
+        } else {
+            char *val;
+            AVDictionary *meta = NULL;
+            struct message msg = {
+                .magic = MAGIC,
+                .frame = av_frame_alloc(),
+            };
+
+            if (!msg.frame) {
+                ret = AVERROR(ENOMEM);
+                break;
+            }
+
+            /* we add some metadata to identify the frames */
+            val = av_asprintf("frame %d/%d from sender %d",
+                              i + 1, wd->workload, wd->id);
+            if (!val) {
+                av_frame_free(&msg.frame);
+                ret = AVERROR(ENOMEM);
+                break;
+            }
+            ret = av_dict_set(&meta, "sig", val, AV_DICT_DONT_STRDUP_VAL);
+            if (ret < 0) {
+                av_frame_free(&msg.frame);
+                break;
+            }
+            msg.frame->metadata = meta;
+
+            /* allocate a real frame in order to simulate "real" work */
+            msg.frame->format = AV_PIX_FMT_RGBA;
+            msg.frame->width  = 320;
+            msg.frame->height = 240;
+            ret = av_frame_get_buffer(msg.frame, 0);
+            if (ret < 0) {
+                av_frame_free(&msg.frame);
+                break;
+            }
+
+            /* push the frame in the common queue */
+            av_log(NULL, AV_LOG_INFO, "sender #%d: sending my work (%d/%d frame:%p)\n",
+                   wd->id, i + 1, wd->workload, msg.frame);
+            ret = av_thread_message_queue_send(wd->queue, &msg, 0);
+            if (ret < 0) {
+                av_frame_free(&msg.frame);
+                break;
+            }
+        }
+    }
+    av_log(NULL, AV_LOG_INFO, "sender #%d: my work is done here (%s)\n",
+           wd->id, av_err2str(ret));
+    av_thread_message_queue_set_err_recv(wd->queue, ret < 0 ? ret : AVERROR_EOF);
+    return NULL;
+}
+
+static void *receiver_thread(void *arg)
+{
+    int i, ret = 0;
+    struct receiver_data *rd = arg;
+
+    for (i = 0; i < rd->workload; i++) {
+        if (rand() % rd->workload < rd->workload / 10) {
+            av_log(NULL, AV_LOG_INFO, "receiver #%d: flushing the queue, "
+                   "discarding %d message(s)\n", rd->id,
+                   av_thread_message_queue_nb_elems(rd->queue));
+            av_thread_message_flush(rd->queue);
+        } else {
+            struct message msg;
+            AVDictionary *meta;
+            AVDictionaryEntry *e;
+
+            ret = av_thread_message_queue_recv(rd->queue, &msg, 0);
+            if (ret < 0)
+                break;
+            av_assert0(msg.magic == MAGIC);
+            meta = msg.frame->metadata;
+            e = av_dict_get(meta, "sig", NULL, 0);
+            av_log(NULL, AV_LOG_INFO, "got \"%s\" (%p)\n", e->value, msg.frame);
+            av_frame_free(&msg.frame);
+        }
+    }
+
+    av_log(NULL, AV_LOG_INFO, "consumed enough (%d), stop\n", i);
+    av_thread_message_queue_set_err_send(rd->queue, ret < 0 ? ret : AVERROR_EOF);
+
+    return NULL;
+}
+
+static int get_workload(int minv, int maxv)
+{
+    return maxv == minv ? maxv : rand() % (maxv - minv) + minv;
+}
+
+int main(int ac, char **av)
+{
+    int i, ret = 0;
+    int max_queue_size;
+    int nb_senders, sender_min_load, sender_max_load;
+    int nb_receivers, receiver_min_load, receiver_max_load;
+    struct sender_data *senders;
+    struct receiver_data *receivers;
+    AVThreadMessageQueue *queue = NULL;
+
+    if (ac != 8) {
+        av_log(NULL, AV_LOG_ERROR, "%s <max_queue_size> "
+               "<nb_senders> <sender_min_send> <sender_max_send> "
+               "<nb_receivers> <receiver_min_recv> <receiver_max_recv>\n", av[0]);
+        return 1;
+    }
+
+    max_queue_size    = atoi(av[1]);
+    nb_senders        = atoi(av[2]);
+    sender_min_load   = atoi(av[3]);
+    sender_max_load   = atoi(av[4]);
+    nb_receivers      = atoi(av[5]);
+    receiver_min_load = atoi(av[6]);
+    receiver_max_load = atoi(av[7]);
+
+    if (max_queue_size <= 0 ||
+        nb_senders <= 0 || sender_min_load <= 0 || sender_max_load <= 0 ||
+        nb_receivers <= 0 || receiver_min_load <= 0 || receiver_max_load <= 0) {
+        av_log(NULL, AV_LOG_ERROR, "negative values not allowed\n");
+        return 1;
+    }
+
+    av_log(NULL, AV_LOG_INFO, "qsize:%d / %d senders sending [%d-%d] / "
+           "%d receivers receiving [%d-%d]\n", max_queue_size,
+           nb_senders, sender_min_load, sender_max_load,
+           nb_receivers, receiver_min_load, receiver_max_load);
+
+    senders = av_mallocz_array(nb_senders, sizeof(*senders));
+    receivers = av_mallocz_array(nb_receivers, sizeof(*receivers));
+    if (!senders || !receivers) {
+        ret = AVERROR(ENOMEM);
+        goto end;
+    }
+
+    ret = av_thread_message_queue_alloc(&queue, max_queue_size, sizeof(struct message));
+    if (ret < 0)
+        goto end;
+
+    av_thread_message_queue_set_free_func(queue, free_frame);
+
+#define SPAWN_THREADS(type) do {                                                \
+    for (i = 0; i < nb_##type##s; i++) {                                        \
+        struct type##_data *td = &type##s[i];                                   \
+                                                                                \
+        td->id = i;                                                             \
+        td->queue = queue;                                                      \
+        td->workload = get_workload(type##_min_load, type##_max_load);          \
+                                                                                \
+        ret = pthread_create(&td->tid, NULL, type##_thread, td);                \
+        if (ret) {                                                              \
+            const int err = AVERROR(ret);                                       \
+            av_log(NULL, AV_LOG_ERROR, "Unable to start " AV_STRINGIFY(type)    \
+                   " thread: %s\n", av_err2str(err));                           \
+            goto end;                                                           \
+        }                                                                       \
+    }                                                                           \
+} while (0)
+
+#define WAIT_THREADS(type) do {                                                 \
+    for (i = 0; i < nb_##type##s; i++) {                                        \
+        struct type##_data *td = &type##s[i];                                   \
+                                                                                \
+        ret = pthread_join(td->tid, NULL);                                      \
+        if (ret) {                                                              \
+            const int err = AVERROR(ret);                                       \
+            av_log(NULL, AV_LOG_ERROR, "Unable to join " AV_STRINGIFY(type)     \
+                   " thread: %s\n", av_err2str(err));                           \
+            goto end;                                                           \
+        }                                                                       \
+    }                                                                           \
+} while (0)
+
+    SPAWN_THREADS(receiver);
+    SPAWN_THREADS(sender);
+
+    WAIT_THREADS(sender);
+    WAIT_THREADS(receiver);
+
+end:
+    av_thread_message_queue_free(&queue);
+    av_freep(&senders);
+    av_freep(&receivers);
+
+    if (ret < 0 && ret != AVERROR_EOF) {
+        av_log(NULL, AV_LOG_ERROR, "Error: %s\n", av_err2str(ret));
+        return 1;
+    }
+    return 0;
+}