diff options
Diffstat (limited to 'test/src')
-rw-r--r-- | test/src/test-ffmpeg.cpp | 371 | ||||
-rw-r--r-- | test/src/test-url.cpp | 2 |
2 files changed, 372 insertions, 1 deletions
diff --git a/test/src/test-ffmpeg.cpp b/test/src/test-ffmpeg.cpp new file mode 100644 index 0000000..c9dcfe1 --- /dev/null +++ b/test/src/test-ffmpeg.cpp @@ -0,0 +1,371 @@ +/* + * Copyright (c) 2003 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. + */ + +/** + * @file + * libavformat API example. + * + * Output a media file in any supported libavformat format. + * The default codecs are used. + * @example doc/examples/muxing.c + */ + +#include <fstream> +#include <sstream> + +extern "C" { +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <math.h> + +#include <libavutil/opt.h> +#include <libavutil/mathematics.h> +#include <libavformat/avformat.h> +#include <libswscale/swscale.h> +#include <libswresample/swresample.h> +} +/* 5 seconds stream duration */ +#define STREAM_FRAME_RATE 25 /* 25 images/s */ +#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */ +#define BMP_FORMAT AV_PIX_FMT_RGB24 + +static int sws_flags = SWS_BICUBIC; + +/* Add an output stream. */ +static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec, + enum AVCodecID codec_id) +{ + AVCodecContext *c; + AVStream *st; + + /* find the encoder */ + *codec = avcodec_find_encoder(codec_id); + if (!(*codec)) { + fprintf(stderr, "Could not find encoder for '%s'\n", + avcodec_get_name(codec_id)); + exit(1); + } + + st = avformat_new_stream(oc, *codec); + if (!st) { + fprintf(stderr, "Could not allocate stream\n"); + exit(1); + } + st->id = oc->nb_streams-1; + c = st->codec; + + switch ((*codec)->type) { + case AVMEDIA_TYPE_AUDIO: + c->sample_fmt = AV_SAMPLE_FMT_FLTP; + c->bit_rate = 64000; + c->sample_rate = 44100; + c->channels = 2; + break; + + case AVMEDIA_TYPE_VIDEO: + c->codec_id = codec_id; + + c->bit_rate = 400000; + /* Resolution must be a multiple of two. */ + c->width = 352; + c->height = 288; + /* timebase: This is the fundamental unit of time (in seconds) in terms + * of which frame timestamps are represented. For fixed-fps content, + * timebase should be 1/framerate and timestamp increments should be + * identical to 1. */ + c->time_base.den = STREAM_FRAME_RATE; + c->time_base.num = 1; + c->gop_size = 12; /* emit one intra frame every twelve frames at most */ + c->pix_fmt = STREAM_PIX_FMT; + if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) { + /* just for testing, we also add B frames */ + c->max_b_frames = 2; + } + if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) { + /* Needed to avoid using macroblocks in which some coeffs overflow. + * This does not happen with normal video, it just happens here as + * the motion of the chroma plane does not match the luma plane. */ + c->mb_decision = 2; + } + break; + + default: + break; + } + + /* Some formats want stream headers to be separate. */ + if (oc->oformat->flags & AVFMT_GLOBALHEADER) + c->flags |= CODEC_FLAG_GLOBAL_HEADER; + + return st; +} + + +/**************************************************************/ +/* video output */ + +static AVFrame *frame; +static AVPicture src_picture, dst_picture; +static int frame_count; + +static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st) +{ + int ret; + AVCodecContext *c = st->codec; + + /* open the codec */ + ret = avcodec_open2(c, codec, NULL); + if (ret < 0) { + fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret)); + exit(1); + } + + /* allocate and init a re-usable frame */ + frame = avcodec_alloc_frame(); + if (!frame) { + fprintf(stderr, "Could not allocate video frame\n"); + exit(1); + } + + /* Allocate the encoded raw picture. */ + ret = avpicture_alloc(&dst_picture, c->pix_fmt, c->width, c->height); + if (ret < 0) { + fprintf(stderr, "Could not allocate picture: %s\n", av_err2str(ret)); + exit(1); + } + + /* If the output format is not YUV420P, then a temporary YUV420P + * picture is needed too. It is then converted to the required + * output format. */ + if (c->pix_fmt != BMP_FORMAT) { + ret = avpicture_alloc(&src_picture, BMP_FORMAT, c->width, c->height); + if (ret < 0) { + fprintf(stderr, "Could not allocate temporary picture: %s\n", + av_err2str(ret)); + exit(1); + } + } + + /* copy data and linesize picture pointers to frame */ + *((AVPicture *)frame) = dst_picture; +} + + +/* Prepare a dummy image. */ +static void fill_rgba_image(AVPicture *pict, int frame_index, + int width, int height) +{ + int x, y, i; + + i = frame_index; + + std::stringstream ssFilename; + ssFilename << "/Users/sradomski/Desktop/ctrl/" << (i % 125) << ".bmp"; + + std::ifstream file(ssFilename.str().c_str()); + + file.seekg(0, std::ios::end); + size_t length = file.tellg(); + file.seekg(0, std::ios::beg); + + char* buffer = (char*)malloc(length); + file.read(buffer, length); + + uint32_t offset = 0; + offset += buffer[10] << 0; + offset += buffer[11] << 8; + offset += buffer[12] << 16; + offset += buffer[13] << 24; + offset--; + + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + pict->data[0][y * pict->linesize[0] + x * 3] = buffer[offset++]; + pict->data[0][y * pict->linesize[0] + x * 3 + 1] = buffer[offset++]; + pict->data[0][y * pict->linesize[0] + x * 3 + 2] = buffer[offset++]; + } + } + + free(buffer); +} + +static void write_video_frame(AVFormatContext *oc, AVStream *st) +{ + int ret; + static struct SwsContext *sws_ctx; + AVCodecContext *c = st->codec; + + if (c->pix_fmt != BMP_FORMAT) { + /* as we only generate a YUV420P picture, we must convert it + * to the codec pixel format if needed */ + if (!sws_ctx) { + sws_ctx = sws_getContext(c->width, c->height, BMP_FORMAT, + c->width, c->height, c->pix_fmt, + sws_flags, NULL, NULL, NULL); + if (!sws_ctx) { + fprintf(stderr, + "Could not initialize the conversion context\n"); + exit(1); + } + } + fill_rgba_image(&src_picture, frame_count, c->width, c->height); + sws_scale(sws_ctx, + (const uint8_t * const *)src_picture.data, src_picture.linesize, + 0, c->height, dst_picture.data, dst_picture.linesize); + } else { + fill_rgba_image(&dst_picture, frame_count, c->width, c->height); + } + + if (oc->oformat->flags & AVFMT_RAWPICTURE) { + /* Raw video case - directly store the picture in the packet */ + AVPacket pkt; + av_init_packet(&pkt); + + pkt.flags |= AV_PKT_FLAG_KEY; + pkt.stream_index = st->index; + pkt.data = dst_picture.data[0]; + pkt.size = sizeof(AVPicture); + + ret = av_interleaved_write_frame(oc, &pkt); + } else { + AVPacket pkt = { 0 }; + int got_packet; + av_init_packet(&pkt); + + /* encode the image */ + ret = avcodec_encode_video2(c, &pkt, frame, &got_packet); + if (ret < 0) { + fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret)); + exit(1); + } + /* If size is zero, it means the image was buffered. */ + + if (!ret && got_packet && pkt.size) { + pkt.stream_index = st->index; + + /* Write the compressed frame to the media file. */ + ret = av_interleaved_write_frame(oc, &pkt); + } else { + ret = 0; + } + } + if (ret != 0) { + fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret)); + exit(1); + } + frame_count++; +} + +static void close_video(AVFormatContext *oc, AVStream *st) +{ + avcodec_close(st->codec); + av_free(src_picture.data[0]); + av_free(dst_picture.data[0]); + av_free(frame); +} + +/**************************************************************/ +/* media file output */ + +int main(int argc, char **argv) +{ + const char *filename; + AVOutputFormat *fmt; + AVFormatContext *oc; + AVStream *video_st; + AVCodec *video_codec; + int ret; + + /* Initialize libavcodec, and register all codecs and formats. */ + av_register_all(); + + filename = "/Users/sradomski/Desktop/test.mpg"; + + /* allocate the output media context */ + avformat_alloc_output_context2(&oc, NULL, NULL, filename); + if (!oc) { + printf("Could not deduce output format from file extension: using MPEG.\n"); + avformat_alloc_output_context2(&oc, NULL, "mpeg", filename); + } + if (!oc) { + return 1; + } + fmt = oc->oformat; + + /* Add the audio and video streams using the default format codecs + * and initialize the codecs. */ + video_st = NULL; + + if (fmt->video_codec != AV_CODEC_ID_NONE) { + video_st = add_stream(oc, &video_codec, fmt->video_codec); + } + + /* Now that all the parameters are set, we can open the audio and + * video codecs and allocate the necessary encode buffers. */ + if (video_st) + open_video(oc, video_codec, video_st); + + /* open the output file, if needed */ + if (!(fmt->flags & AVFMT_NOFILE)) { + ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE); + if (ret < 0) { + fprintf(stderr, "Could not open '%s': %s\n", filename, + av_err2str(ret)); + return 1; + } + } + + /* Write the stream header, if any. */ + ret = avformat_write_header(oc, NULL); + if (ret < 0) { + fprintf(stderr, "Error occurred when opening output file: %s\n", + av_err2str(ret)); + return 1; + } + + if (frame) + frame->pts = 0; + for (int i = 0; i < 125; i++) { + write_video_frame(oc, video_st); + frame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base); + } + + /* Write the trailer, if any. The trailer must be written before you + * close the CodecContexts open when you wrote the header; otherwise + * av_write_trailer() may try to use memory that was freed on + * av_codec_close(). */ + av_write_trailer(oc); + + /* Close each codec. */ + if (video_st) + close_video(oc, video_st); + + if (!(fmt->flags & AVFMT_NOFILE)) + /* Close the output file. */ + avio_close(oc->pb); + + /* free the stream */ + avformat_free_context(oc); + + return 0; +} diff --git a/test/src/test-url.cpp b/test/src/test-url.cpp index e0f8343..ed892b8 100644 --- a/test/src/test-url.cpp +++ b/test/src/test-url.cpp @@ -47,7 +47,7 @@ int main(int argc, char** argv) { WSADATA wsaData;
WSAStartup(MAKEWORD(2, 2), &wsaData);
#endif
-
+
std::string exeName = argv[0];
exeName = exeName.substr(exeName.find_last_of("\\/") + 1);
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