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FFmpeg API seems to be too fragmented. Give in and #ifdef shit. :v

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This commit is contained in:
Themaister 2011-09-23 22:57:41 +02:00
parent c2cedb1b6f
commit 8d4620b680
3 changed files with 64 additions and 2 deletions
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4
Makefile.win
View File

@ -117,6 +117,10 @@ endif
ifeq ($(HAVE_FFMPEG), 1)
LIBS += -lavformat -lavcodec -lavutil -lswscale -lws2_32 -lz
DEFINES += -DHAVE_FFMPEG -Iffmpeg
DEFINES += -DHAVE_FFMPEG_ALLOC_CONTEXT3
DEFINES += -DHAVE_FFMPEG_AVCODEC_OPEN2
DEFINES += -DHAVE_FFMPEG_AVIO_OPEN
DEFINES += -DHAVE_FFMPEG_AVFORMAT_WRITE_HEADER
OBJ += record/ffemu.o
endif

9
qb/config.libs.sh
View File

@ -75,6 +75,13 @@ if [ $HAVE_FFMPEG != no ]; then
( [ $HAVE_FFMPEG = auto ] && ( [ $HAVE_AVCODEC = no ] || [ $HAVE_AVFORMAT = no ] || [ $HAVE_AVUTIL = no ] || [ $HAVE_SWSCALE = no ] ) && HAVE_FFMPEG=no ) || HAVE_FFMPEG=yes
fi
if [ $HAVE_FFMPEG = yes ]; then
check_lib FFMPEG_ALLOC_CONTEXT3 "$AVCODEC_LIBS" avcodec_alloc_context3
check_lib FFMPEG_AVCODEC_OPEN2 "$AVCODEC_LIBS" avcodec_open2
check_lib FFMPEG_AVIO_OPEN "$AVFORMAT_LIBS" avio_open
check_lib FFMPEG_AVFORMAT_WRITE_HEADER "$AVFORMAT_LIBS" avformat_write_header
fi
check_pkgconf SRC samplerate
check_lib DYNAMIC $DYLIB dlopen
@ -89,7 +96,7 @@ check_pkgconf PYTHON python3
add_define_make OS $OS
# Creates config.mk and config.h.
VARS="ALSA OSS OSS_BSD OSS_LIB AL RSOUND ROAR JACK COREAUDIO PULSE SDL DYLIB CG XML SDL_IMAGE DYNAMIC FFMPEG AVCODEC AVFORMAT AVUTIL SWSCALE SRC CONFIGFILE FREETYPE XVIDEO NETPLAY FBO STRL PYTHON"
VARS="ALSA OSS OSS_BSD OSS_LIB AL RSOUND ROAR JACK COREAUDIO PULSE SDL DYLIB CG XML SDL_IMAGE DYNAMIC FFMPEG AVCODEC AVFORMAT AVUTIL SWSCALE SRC CONFIGFILE FREETYPE XVIDEO NETPLAY FBO STRL PYTHON FFMPEG_ALLOC_CONTEXT3 FFMPEG_AVCODEC_OPEN2 FFMPEG_AVIO_OPEN FFMPEG_AVFORMAT_WRITE_HEADER"
create_config_make config.mk $VARS
create_config_header config.h $VARS

53
record/ffemu.c
View File

@ -15,6 +15,10 @@
#include "fifo_buffer.h"
#include "SDL_thread.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
struct video_info
{
AVCodecContext *codec;
@ -79,14 +83,27 @@ static bool init_audio(struct audio_info *audio, struct ffemu_params *param)
if (!codec)
return false;
// FFmpeg just loves to deprecate stuff :)
#ifdef HAVE_FFMPEG_ALLOC_CONTEXT3
audio->codec = avcodec_alloc_context3(codec);
#else
audio->codec = avcodec_alloc_context();
avcodec_get_context_defaults(audio->codec);
#endif
audio->codec->sample_rate = param->samplerate;
audio->codec->time_base = (AVRational) { 1, param->samplerate };
audio->codec->channels = param->channels;
audio->codec->sample_fmt = AV_SAMPLE_FMT_S16;
#ifdef HAVE_FFMPEG_AVCODEC_OPEN2
if (avcodec_open2(audio->codec, codec, NULL) != 0)
#else
if (avcodec_open(audio->codec, codec) != 0)
#endif
{
return false;
}
audio->buffer = av_malloc(audio->codec->frame_size * param->channels * sizeof(int16_t));
if (!audio->buffer)
@ -118,7 +135,13 @@ static bool init_video(struct video_info *video, struct ffemu_params *param)
video->pix_size = sizeof(uint32_t);
}
#ifdef HAVE_FFMPEG_ALLOC_CONTEXT3
video->codec = avcodec_alloc_context3(codec);
#else
video->codec = avcodec_alloc_context();
avcodec_get_context_defaults(video->codec);
#endif
video->codec->width = param->out_width;
video->codec->height = param->out_height;
video->codec->time_base = (AVRational) {param->fps.den, param->fps.num};
@ -126,8 +149,14 @@ static bool init_video(struct video_info *video, struct ffemu_params *param)
video->codec->sample_aspect_ratio = av_d2q(param->aspect_ratio * param->out_height / param->out_width, 255);
video->codec->thread_count = 2;
#ifdef HAVE_FFMPEG_AVCODEC_OPEN2
if (avcodec_open2(video->codec, codec, NULL) != 0)
#else
if (avcodec_open(video->codec, codec) != 0)
#endif
{
return false;
}
// Allocate a big buffer :p ffmpeg API doesn't seem to give us some clues how big this buffer should be.
video->outbuf_size = 1 << 23;
@ -147,7 +176,23 @@ static bool init_muxer(ffemu_t *handle)
AVFormatContext *ctx = avformat_alloc_context();
av_strlcpy(ctx->filename, handle->params.filename, sizeof(ctx->filename));
ctx->oformat = av_guess_format(NULL, ctx->filename, NULL);
if (avio_open(&ctx->pb, ctx->filename, AVIO_FLAG_WRITE) < 0)
// FFmpeg sure likes to make things difficult.
#if defined(AVIO_FLAG_WRITE)
#define FFMPEG_FLAG_RW AVIO_FLAG_WRITE
#elif defined(AVIO_WRONLY)
#define FFMPEG_FLAG_RW AVIO_WRONLY
#elif defined(URL_WRONLY)
#define FFMPEG_FLAG_RW URL_WRONLY
#else
#define FFMPEG_FLAG_RW 2 // Seems to be consistent, but you never know.
#endif
#ifdef HAVE_FFMPEG_AVIO_OPEN
if (avio_open(&ctx->pb, ctx->filename, FFMPEG_FLAG_RW) < 0)
#else
if (url_fopen(&ctx->pb, ctx->filename, FFMPEG_FLAG_RW) < 0)
#endif
{
av_free(ctx);
return false;
@ -169,8 +214,14 @@ static bool init_muxer(ffemu_t *handle)
handle->audio.codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
handle->muxer.astream = stream;
#ifdef HAVE_FFMPEG_AVFORMAT_WRITE_HEADER
if (avformat_write_header(ctx, NULL) < 0)
#else
if (av_write_header(ctx) != 0)
#endif
{
return false;
}
handle->muxer.ctx = ctx;
return true;