From b04c630a3dbe4ff78233a7b44da092a5fde28f69 Mon Sep 17 00:00:00 2001 From: Ludmila Glinskih Date: Wed, 24 Jun 2015 19:21:07 +0300 Subject: libavformat: Add H264 API test Result differs in pkt_duration and time_base.den for some reason. Right now it tests only one example (adjusted to match the output). Signed-off-by: Michael Niedermayer --- libavformat/Makefile | 1 + libavformat/api-h264-test.c | 183 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 184 insertions(+) create mode 100644 libavformat/api-h264-test.c (limited to 'libavformat') diff --git a/libavformat/Makefile b/libavformat/Makefile index 993ec09837..5380a2ad45 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -547,6 +547,7 @@ TESTPROGS = seek \ url \ TESTPROGS-$(CONFIG_NETWORK) += noproxy +TESTPROGS-yes += api-h264 TESTPROGS-$(CONFIG_FFRTMPCRYPT_PROTOCOL) += rtmpdh TOOLS = aviocat \ diff --git a/libavformat/api-h264-test.c b/libavformat/api-h264-test.c new file mode 100644 index 0000000000..4d2a5b049c --- /dev/null +++ b/libavformat/api-h264-test.c @@ -0,0 +1,183 @@ +/* + * 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" + +static int video_decode_example(const char *input_filename) +{ + AVCodec *codec = NULL; + AVCodecContext *origin_ctx = NULL, *ctx= NULL; + AVFrame *fr = NULL; + uint8_t *byte_buffer = NULL; + AVPacket pkt; + AVFormatContext *fmt_ctx = NULL; + int number_of_written_bytes; + int video_stream; + int get_frame = 0; + int byte_buffer_size; + int i = 0; + int result; + + 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_ctx = fmt_ctx->streams[video_stream]->codec; + + codec = avcodec_find_decoder(origin_ctx->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_copy_context(ctx, origin_ctx); + 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); + while (av_read_frame(fmt_ctx, &pkt) >= 0) { + if (pkt.stream_index == video_stream) { + get_frame = 0; + if (pkt.pts == AV_NOPTS_VALUE) + pkt.pts = pkt.dts = i; + result = avcodec_decode_video2(ctx, fr, &get_frame, &pkt); + if (result < 0) { + av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n"); + return result; + } + if (get_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, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08lx\n", video_stream, + fr->pkt_pts, fr->pkt_dts, av_frame_get_pkt_duration(fr), + number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes)); + } + av_free_packet(&pkt); + av_init_packet(&pkt); + } + i++; + } + pkt.data = NULL; + pkt.size = 0; + if (pkt.pts == AV_NOPTS_VALUE) + pkt.pts = pkt.dts = i; + do { + get_frame = 0; + result = avcodec_decode_video2(ctx, fr, &get_frame, &pkt); + if (result < 0) { + av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n"); + return result; + } + if (get_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, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08lx\n", video_stream, + fr->pkt_pts, fr->pkt_dts, av_frame_get_pkt_duration(fr), + number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes)); + } + i++; + } while (get_frame); + + av_free_packet(&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; + } + + av_register_all(); + + if (video_decode_example(argv[1]) != 0) + return 1; + + return 0; +} -- cgit v1.2.3