Add libav version conditions

This commit is contained in:
ejurgensen 2014-01-02 22:49:18 +01:00
parent 21584fa1ff
commit edaa8fe4f2
2 changed files with 138 additions and 14 deletions

View File

@ -130,7 +130,13 @@ AC_RUN_IFELSE(
AC_LANG_POP([C])
LIBS="$save_LIBS"
PKG_CHECK_MODULES(LIBAV, [ libavcodec libavformat libswscale libavutil libavresample ])
_PKG_CONFIG([libavcodec_VERSION], [atleast-version=54.35], [libavcodec])
if test $pkg_failed = yes; then
PKG_CHECK_MODULES(LIBAV, [ libavcodec libavformat libswscale libavutil ])
else
PKG_CHECK_MODULES(LIBAV, [ libavcodec libavformat libswscale libavutil libavresample ])
fi
dnl Check for av_lock_manager (ffmpeg >= 0.5.1)
save_LIBS="$LIBS"
AC_CHECK_LIB([avcodec], [av_lockmgr_register], , AC_MSG_ERROR([libav (ffmpeg) >= 0.5.1 required]))

View File

@ -43,9 +43,11 @@
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libavresample/avresample.h>
#include <libavutil/mathematics.h>
#include <libavutil/opt.h>
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
# include <libavutil/opt.h>
# include <libavresample/avresample.h>
#endif
#include "logger.h"
#include "conffile.h"
@ -67,8 +69,13 @@ struct transcode_ctx {
int16_t *abuffer;
/* Resampling */
int need_resample;
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
AVAudioResampleContext *resample_ctx;
#else
ReSampleContext *resample_ctx;
int input_size;
#endif
int need_resample;
int16_t *re_abuffer;
off_t offset;
@ -148,12 +155,15 @@ transcode(struct transcode_ctx *ctx, struct evbuffer *evbuf, int wanted)
#if BYTE_ORDER == BIG_ENDIAN
int i;
#endif
#if LIBAVCODEC_VERSION_MAJOR >= 54 || (LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR >= 35)
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
AVFrame *frame = NULL;
int got_frame;
int out_size;
int out_linesize;
int out_samples;
#elif LIBAVCODEC_VERSION_MAJOR >= 54 || (LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR >= 35)
AVFrame *frame = NULL;
int got_frame;
#endif
processed = 0;
@ -171,6 +181,7 @@ transcode(struct transcode_ctx *ctx, struct evbuffer *evbuf, int wanted)
/* Decode data */
while (ctx->apacket2.size > 0)
{
#if LIBAVCODEC_VERSION_MAJOR >= 54 || (LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR >= 35)
got_frame = 0;
if (!frame)
@ -190,6 +201,13 @@ transcode(struct transcode_ctx *ctx, struct evbuffer *evbuf, int wanted)
used = avcodec_decode_audio4(ctx->acodec,
frame, &got_frame,
&ctx->apacket2);
#else
buflen = XCODE_BUFFER_SIZE;
used = avcodec_decode_audio3(ctx->acodec,
ctx->abuffer, &buflen,
&ctx->apacket2);
#endif
if (used < 0)
{
@ -202,10 +220,47 @@ transcode(struct transcode_ctx *ctx, struct evbuffer *evbuf, int wanted)
ctx->apacket2.size -= used;
/* No frame decoded this time around */
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
if (!got_frame)
continue;
#elif LIBAVCODEC_VERSION_MAJOR >= 54 || (LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR >= 35)
if (!got_frame)
continue;
else
{
/* This part is from the libav wrapper for avcodec_decode_audio3 */
int ch, plane_size;
int planar = av_sample_fmt_is_planar(ctx->acodec->sample_fmt);
int data_size = av_samples_get_buffer_size(&plane_size, ctx->acodec->channels,
frame->nb_samples, ctx->acodec->sample_fmt, 1);
if (XCODE_BUFFER_SIZE < data_size)
{
DPRINTF(E_WARN, L_XCODE, "Output buffer too small for frame (%d < %d)\n", XCODE_BUFFER_SIZE, data_size);
continue;
}
memcpy(ctx->abuffer, frame->extended_data[0], plane_size);
if (planar && ctx->acodec->channels > 1)
{
uint8_t *out = ((uint8_t *)ctx->abuffer) + plane_size;
for (ch = 1; ch < ctx->acodec->channels; ch++)
{
memcpy(out, frame->extended_data[ch], plane_size);
out += plane_size;
}
}
buflen = data_size;
}
#else
if (buflen == 0)
continue;
#endif
if (ctx->need_resample)
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
{
out_size = av_samples_get_buffer_size(&out_linesize, 2, frame->nb_samples, AV_SAMPLE_FMT_S16, 0);
@ -226,13 +281,29 @@ transcode(struct transcode_ctx *ctx, struct evbuffer *evbuf, int wanted)
return -1;
}
buflen = out_samples * av_get_bytes_per_sample(AV_SAMPLE_FMT_S16) * 2; /* 16bit samples, 2 channels */
buflen = out_samples * 2 * 2; /* 16bit samples, 2 channels */
}
else
{
buf = (int16_t *)frame->data[0];
buflen = av_samples_get_buffer_size(NULL, ctx->acodec->channels, frame->nb_samples, ctx->acodec->sample_fmt, 1);
}
#else
{
buflen = audio_resample(ctx->resample_ctx, ctx->re_abuffer, ctx->abuffer, buflen / ctx->input_size);
if (buflen == 0)
{
DPRINTF(E_WARN, L_XCODE, "Resample returned no samples!\n");
continue;
}
buflen = buflen * 2 * 2; /* 16bit samples, 2 channels */
buf = ctx->re_abuffer;
}
else
buf = ctx->abuffer;
#endif
#if BYTE_ORDER == BIG_ENDIAN
/* swap buffer, LE16 */
@ -276,8 +347,10 @@ transcode(struct transcode_ctx *ctx, struct evbuffer *evbuf, int wanted)
ctx->offset += processed;
#if LIBAVCODEC_VERSION_MAJOR >= 54 || (LIBAVCODEC_VERSION_MAJOR == 53 && LIBAVCODEC_VERSION_MINOR >= 35)
if (frame)
avcodec_free_frame(&frame);
#endif
return processed;
}
@ -374,7 +447,6 @@ struct transcode_ctx *
transcode_setup(struct media_file_info *mfi, off_t *est_size, int wavhdr)
{
struct transcode_ctx *ctx;
int i;
int ret;
ctx = (struct transcode_ctx *)malloc(sizeof(struct transcode_ctx));
@ -411,14 +483,21 @@ transcode_setup(struct media_file_info *mfi, off_t *est_size, int wavhdr)
goto setup_fail;
}
#if LIBAVCODEC_VERSION_MAJOR >= 53 || (LIBAVCODEC_VERSION_MAJOR == 52 && LIBAVCODEC_VERSION_MINOR >= 64)
ctx->astream = av_find_best_stream(ctx->fmtctx, AVMEDIA_TYPE_AUDIO, -1, -1, &ctx->adecoder, 0);
if (ctx->astream < 0)
{
DPRINTF(E_WARN, L_XCODE, "Did not find audio stream or suitable decoder for %s\n", mfi->fname);
goto setup_fail;
}
#else
int i;
ctx->astream = -1;
for (i = 0; i < ctx->fmtctx->nb_streams; i++)
{
#if LIBAVCODEC_VERSION_MAJOR >= 53 || (LIBAVCODEC_VERSION_MAJOR == 52 && LIBAVCODEC_VERSION_MINOR >= 64)
if (ctx->fmtctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO)
#else
if (ctx->fmtctx->streams[i]->codec->codec_type == CODEC_TYPE_AUDIO)
#endif
{
ctx->astream = i;
@ -433,15 +512,15 @@ transcode_setup(struct media_file_info *mfi, off_t *est_size, int wavhdr)
goto setup_fail;
}
ctx->acodec = ctx->fmtctx->streams[ctx->astream]->codec;
ctx->adecoder = avcodec_find_decoder(ctx->acodec->codec_id);
ctx->adecoder = avcodec_find_decoder(ctx->fmtctx->streams[ctx->astream]->codec->codec_id);
if (!ctx->adecoder)
{
DPRINTF(E_WARN, L_XCODE, "No suitable decoder found for codec\n");
goto setup_fail;
}
#endif
ctx->acodec = ctx->fmtctx->streams[ctx->astream]->codec;
if (ctx->adecoder->capabilities & CODEC_CAP_TRUNCATED)
ctx->acodec->flags |= CODEC_FLAG_TRUNCATED;
@ -475,6 +554,7 @@ transcode_setup(struct media_file_info *mfi, off_t *est_size, int wavhdr)
if (ctx->need_resample)
{
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
if (!ctx->acodec->channel_layout)
{
DPRINTF(E_DBG, L_XCODE, "Resample requires channel_layout, but none from ffmpeg. Setting to default.\n");
@ -509,6 +589,40 @@ transcode_setup(struct media_file_info *mfi, off_t *est_size, int wavhdr)
avresample_free(&ctx->resample_ctx);
goto setup_fail_codec;
}
#else
DPRINTF(E_DBG, L_XCODE, "Setting up resampling (%d@%d)\n", ctx->acodec->channels, ctx->acodec->sample_rate);
ctx->resample_ctx = av_audio_resample_init(2, ctx->acodec->channels,
44100, ctx->acodec->sample_rate,
AV_SAMPLE_FMT_S16, ctx->acodec->sample_fmt,
16, 10, 0, 0.8);
if (!ctx->resample_ctx)
{
DPRINTF(E_WARN, L_XCODE, "Could not init resample from %d@%d to 2@44100\n", ctx->acodec->channels, ctx->acodec->sample_rate);
goto setup_fail_codec;
}
ctx->re_abuffer = (int16_t *)av_malloc(XCODE_BUFFER_SIZE * 2);
if (!ctx->re_abuffer)
{
DPRINTF(E_WARN, L_XCODE, "Could not allocate resample buffer\n");
audio_resample_close(ctx->resample_ctx);
goto setup_fail_codec;
}
#endif
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
#elif LIBAVUTIL_VERSION_MAJOR >= 52 || (LIBAVUTIL_VERSION_MAJOR == 51 && LIBAVUTIL_VERSION_MINOR >= 4)
ctx->input_size = ctx->acodec->channels * av_get_bytes_per_sample(ctx->acodec->sample_fmt);
#elif LIBAVCODEC_VERSION_MAJOR >= 53
ctx->input_size = ctx->acodec->channels * av_get_bits_per_sample_fmt(ctx->acodec->sample_fmt) / 8;
#else
ctx->input_size = ctx->acodec->channels * av_get_bits_per_sample_format(ctx->acodec->sample_fmt) / 8;
#endif
}
ctx->duration = mfi->song_length;
@ -551,7 +665,11 @@ transcode_cleanup(struct transcode_ctx *ctx)
if (ctx->need_resample)
{
#if LIBAVCODEC_VERSION_MAJOR >= 55 || (LIBAVCODEC_VERSION_MAJOR == 54 && LIBAVCODEC_VERSION_MINOR >= 35)
avresample_free(&ctx->resample_ctx);
#else
audio_resample_close(ctx->resample_ctx);
#endif
av_free(ctx->re_abuffer);
}