mirror of https://github.com/mpv-player/mpv
410 lines
12 KiB
C
410 lines
12 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <inttypes.h>
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#include <limits.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "aviheader.h"
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#include "ms_hdr.h"
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#include "av_opts.h"
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#include "stream/stream.h"
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#include "muxer.h"
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#include "demuxer.h"
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#include "stheader.h"
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#include "m_option.h"
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#include "libavformat/avformat.h"
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#include "libavutil/avstring.h"
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#include "mp_taglists.h"
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enum PixelFormat imgfmt2pixfmt(int fmt);
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extern char *info_name;
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extern char *info_artist;
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extern char *info_genre;
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extern char *info_subject;
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extern char *info_copyright;
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extern char *info_sourceform;
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extern char *info_comment;
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#define BIO_BUFFER_SIZE 32768
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typedef struct {
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//AVInputFormat *avif;
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AVFormatContext *oc;
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ByteIOContext *pb;
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int audio_streams;
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int video_streams;
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int64_t last_pts;
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uint8_t buffer[BIO_BUFFER_SIZE];
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} muxer_priv_t;
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typedef struct {
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int64_t last_pts;
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AVStream *avstream;
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} muxer_stream_priv_t;
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static char *conf_format = NULL;
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static int mux_rate= 0;
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static int mux_packet_size= 0;
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static float mux_preload= 0.5;
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static float mux_max_delay= 0.7;
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static char *mux_avopt = NULL;
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m_option_t lavfopts_conf[] = {
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{"format", &(conf_format), CONF_TYPE_STRING, 0, 0, 0, NULL},
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{"muxrate", &mux_rate, CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
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{"packetsize", &mux_packet_size, CONF_TYPE_INT, CONF_RANGE, 0, INT_MAX, NULL},
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{"preload", &mux_preload, CONF_TYPE_FLOAT, CONF_RANGE, 0, INT_MAX, NULL},
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{"delay", &mux_max_delay, CONF_TYPE_FLOAT, CONF_RANGE, 0, INT_MAX, NULL},
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{"o", &mux_avopt, CONF_TYPE_STRING, 0, 0, 0, NULL},
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{NULL, NULL, 0, 0, 0, 0, NULL}
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};
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static int mp_write(void *opaque, uint8_t *buf, int size)
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{
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muxer_t *muxer = opaque;
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return stream_write_buffer(muxer->stream, buf, size);
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}
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static int64_t mp_seek(void *opaque, int64_t pos, int whence)
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{
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muxer_t *muxer = opaque;
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if(whence == SEEK_CUR)
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{
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off_t cur = stream_tell(muxer->stream);
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if(cur == -1)
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return -1;
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pos += cur;
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}
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else if(whence == SEEK_END)
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{
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off_t size=0;
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if(stream_control(muxer->stream, STREAM_CTRL_GET_SIZE, &size) == STREAM_UNSUPPORTED || size < pos)
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return -1;
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pos = size - pos;
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}
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mp_msg(MSGT_MUXER, MSGL_DBG2, "SEEK %"PRIu64"\n", (int64_t)pos);
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if(!stream_seek(muxer->stream, pos))
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return -1;
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return 0;
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}
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static muxer_stream_t* lavf_new_stream(muxer_t *muxer, int type)
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{
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muxer_priv_t *priv = muxer->priv;
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muxer_stream_t *stream;
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muxer_stream_priv_t *spriv;
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AVCodecContext *ctx;
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if(!muxer || (type != MUXER_TYPE_VIDEO && type != MUXER_TYPE_AUDIO))
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{
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mp_msg(MSGT_MUXER, MSGL_ERR, "UNKNOWN TYPE %d\n", type);
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return NULL;
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}
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stream = calloc(1, sizeof(muxer_stream_t));
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if(!stream)
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{
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mp_msg(MSGT_MUXER, MSGL_ERR, "Could not allocate muxer_stream, EXIT.\n");
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return NULL;
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}
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muxer->streams[muxer->avih.dwStreams] = stream;
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stream->b_buffer = malloc(2048);
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if(!stream->b_buffer)
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{
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mp_msg(MSGT_MUXER, MSGL_ERR, "Could not allocate b_buffer, EXIT.\n");
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free(stream);
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return NULL;
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}
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stream->b_buffer_size = 2048;
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stream->b_buffer_ptr = 0;
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stream->b_buffer_len = 0;
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spriv = calloc(1, sizeof(muxer_stream_priv_t));
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if(!spriv)
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{
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free(stream);
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return NULL;
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}
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stream->priv = spriv;
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spriv->avstream = av_new_stream(priv->oc, 1);
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if(!spriv->avstream)
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{
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mp_msg(MSGT_MUXER, MSGL_ERR, "Could not allocate avstream, EXIT.\n");
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return NULL;
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}
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spriv->avstream->stream_copy = 1;
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ctx = spriv->avstream->codec;
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ctx->codec_id = muxer->avih.dwStreams;
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switch(type)
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{
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case MUXER_TYPE_VIDEO:
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ctx->codec_type = CODEC_TYPE_VIDEO;
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break;
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case MUXER_TYPE_AUDIO:
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ctx->codec_type = CODEC_TYPE_AUDIO;
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break;
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}
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muxer->avih.dwStreams++;
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stream->muxer = muxer;
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stream->type = type;
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mp_msg(MSGT_MUXER, MSGL_V, "ALLOCATED STREAM N. %d, type=%d\n", muxer->avih.dwStreams, type);
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return stream;
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}
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static void fix_parameters(muxer_stream_t *stream)
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{
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muxer_stream_priv_t *spriv = (muxer_stream_priv_t *) stream->priv;
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AVCodecContext *ctx;
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ctx = spriv->avstream->codec;
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ctx->bit_rate= stream->avg_rate;
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if(stream->wf && stream->wf->nAvgBytesPerSec && !ctx->bit_rate)
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ctx->bit_rate = stream->wf->nAvgBytesPerSec * 8;
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ctx->rc_buffer_size= stream->vbv_size;
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ctx->rc_max_rate= stream->max_rate;
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if(stream->type == MUXER_TYPE_AUDIO)
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{
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ctx->codec_id = av_codec_get_id(mp_wav_taglists, stream->wf->wFormatTag);
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#if 0 //breaks aac in mov at least
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ctx->codec_tag = codec_get_wav_tag(ctx->codec_id);
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#endif
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mp_msg(MSGT_MUXER, MSGL_INFO, "AUDIO CODEC ID: %x, TAG: %x\n", ctx->codec_id, (uint32_t) ctx->codec_tag);
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ctx->sample_rate = stream->wf->nSamplesPerSec;
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// mp_msg(MSGT_MUXER, MSGL_INFO, "stream->h.dwSampleSize: %d\n", stream->h.dwSampleSize);
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ctx->channels = stream->wf->nChannels;
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if(stream->h.dwRate && (stream->h.dwScale * (int64_t)ctx->sample_rate) % stream->h.dwRate == 0)
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ctx->frame_size= (stream->h.dwScale * (int64_t)ctx->sample_rate) / stream->h.dwRate;
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mp_msg(MSGT_MUXER, MSGL_V, "MUXER_LAVF(audio stream) frame_size: %d, scale: %u, sps: %u, rate: %u, ctx->block_align = stream->wf->nBlockAlign; %d=%d stream->wf->nAvgBytesPerSec:%d\n",
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ctx->frame_size, stream->h.dwScale, ctx->sample_rate, stream->h.dwRate,
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ctx->block_align, stream->wf->nBlockAlign, stream->wf->nAvgBytesPerSec);
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ctx->block_align = stream->h.dwSampleSize;
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if(stream->wf+1 && stream->wf->cbSize)
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{
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ctx->extradata = av_malloc(stream->wf->cbSize);
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if(ctx->extradata != NULL)
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{
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ctx->extradata_size = stream->wf->cbSize;
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memcpy(ctx->extradata, stream->wf+1, ctx->extradata_size);
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}
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else
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mp_msg(MSGT_MUXER, MSGL_ERR, "MUXER_LAVF(audio stream) error! Could not allocate %d bytes for extradata.\n",
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stream->wf->cbSize);
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}
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}
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else if(stream->type == MUXER_TYPE_VIDEO)
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{
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ctx->codec_id = av_codec_get_id(mp_bmp_taglists, stream->bih->biCompression);
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if(ctx->codec_id <= 0 || force_fourcc)
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ctx->codec_tag= stream->bih->biCompression;
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mp_msg(MSGT_MUXER, MSGL_INFO, "VIDEO CODEC ID: %d\n", ctx->codec_id);
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if (stream->imgfmt)
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ctx->pix_fmt = imgfmt2pixfmt(stream->imgfmt);
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ctx->width = stream->bih->biWidth;
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ctx->height = stream->bih->biHeight;
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ctx->bit_rate = 800000;
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ctx->time_base.den = stream->h.dwRate;
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ctx->time_base.num = stream->h.dwScale;
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if(stream->bih+1 && (stream->bih->biSize > sizeof(BITMAPINFOHEADER)))
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{
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ctx->extradata_size = stream->bih->biSize - sizeof(BITMAPINFOHEADER);
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ctx->extradata = av_malloc(ctx->extradata_size);
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if(ctx->extradata != NULL)
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memcpy(ctx->extradata, stream->bih+1, ctx->extradata_size);
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else
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{
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mp_msg(MSGT_MUXER, MSGL_ERR, "MUXER_LAVF(video stream) error! Could not allocate %d bytes for extradata.\n",
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ctx->extradata_size);
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ctx->extradata_size = 0;
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}
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}
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}
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}
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static void write_chunk(muxer_stream_t *stream, size_t len, unsigned int flags, double dts, double pts)
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{
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muxer_t *muxer = (muxer_t*) stream->muxer;
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muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
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muxer_stream_priv_t *spriv = (muxer_stream_priv_t *) stream->priv;
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AVPacket pkt;
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if(len)
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{
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av_init_packet(&pkt);
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pkt.size = len;
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pkt.stream_index= spriv->avstream->index;
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pkt.data = stream->buffer;
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if(flags & AVIIF_KEYFRAME)
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pkt.flags |= PKT_FLAG_KEY;
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else
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pkt.flags = 0;
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pkt.dts = (dts / av_q2d(priv->oc->streams[pkt.stream_index]->time_base) + 0.5);
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pkt.pts = (pts / av_q2d(priv->oc->streams[pkt.stream_index]->time_base) + 0.5);
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//fprintf(stderr, "%Ld %Ld id:%d tb:%f %f\n", pkt.dts, pkt.pts, pkt.stream_index, av_q2d(priv->oc->streams[pkt.stream_index]->time_base), stream->timer);
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if(av_interleaved_write_frame(priv->oc, &pkt) != 0) //av_write_frame(priv->oc, &pkt)
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{
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mp_msg(MSGT_MUXER, MSGL_ERR, "Error while writing frame.\n");
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}
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}
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return;
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}
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static void write_header(muxer_t *muxer)
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{
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muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
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mp_msg(MSGT_MUXER, MSGL_INFO, MSGTR_WritingHeader);
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av_write_header(priv->oc);
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muxer->cont_write_header = NULL;
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}
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static void write_trailer(muxer_t *muxer)
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{
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int i;
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muxer_priv_t *priv = (muxer_priv_t *) muxer->priv;
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mp_msg(MSGT_MUXER, MSGL_INFO, MSGTR_WritingTrailer);
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av_write_trailer(priv->oc);
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for(i = 0; i < priv->oc->nb_streams; i++)
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{
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av_freep(&(priv->oc->streams[i]));
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}
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av_freep(&priv->oc->pb);
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av_free(priv->oc);
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}
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static void list_formats(void) {
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AVOutputFormat *fmt;
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mp_msg(MSGT_DEMUX, MSGL_INFO, "Available lavf output formats:\n");
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for (fmt = first_oformat; fmt; fmt = fmt->next)
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mp_msg(MSGT_DEMUX, MSGL_INFO, "%15s : %s\n", fmt->name, fmt->long_name);
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}
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extern char *out_filename;
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int muxer_init_muxer_lavf(muxer_t *muxer)
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{
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muxer_priv_t *priv;
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AVOutputFormat *fmt = NULL;
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av_register_all();
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if (conf_format && strcmp(conf_format, "help") == 0) {
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list_formats();
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return 0;
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}
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mp_msg(MSGT_MUXER, MSGL_WARN, "** MUXER_LAVF *****************************************************************\n");
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mp_msg(MSGT_MUXER, MSGL_WARN,
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"REMEMBER: MEncoder's libavformat muxing is presently broken and can generate\n"
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"INCORRECT files in the presence of B-frames. Moreover, due to bugs MPlayer\n"
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"will play these INCORRECT files as if nothing were wrong!\n"
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"*******************************************************************************\n");
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priv = calloc(1, sizeof(muxer_priv_t));
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if(priv == NULL)
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return 0;
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priv->oc = av_alloc_format_context();
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if(!priv->oc)
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{
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mp_msg(MSGT_MUXER, MSGL_FATAL, "Could not get format context.\n");
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goto fail;
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}
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if(conf_format)
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fmt = guess_format(conf_format, NULL, NULL);
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if(! fmt)
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fmt = guess_format(NULL, out_filename, NULL);
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if(! fmt)
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{
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mp_msg(MSGT_MUXER, MSGL_FATAL, "Cannot get specified format.\n");
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goto fail;
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}
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priv->oc->oformat = fmt;
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if(av_set_parameters(priv->oc, NULL) < 0)
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{
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mp_msg(MSGT_MUXER, MSGL_FATAL, "invalid output format parameters\n");
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goto fail;
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}
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priv->oc->packet_size= mux_packet_size;
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priv->oc->mux_rate= mux_rate;
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priv->oc->preload= (int)(mux_preload*AV_TIME_BASE);
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priv->oc->max_delay= (int)(mux_max_delay*AV_TIME_BASE);
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if (info_name)
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av_strlcpy(priv->oc->title , info_name, sizeof(priv->oc->title ));
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if (info_artist)
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av_strlcpy(priv->oc->author , info_artist, sizeof(priv->oc->author ));
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if (info_genre)
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av_strlcpy(priv->oc->genre , info_genre, sizeof(priv->oc->genre ));
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if (info_copyright)
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av_strlcpy(priv->oc->copyright, info_copyright, sizeof(priv->oc->copyright));
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if (info_comment)
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av_strlcpy(priv->oc->comment , info_comment, sizeof(priv->oc->comment ));
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if(mux_avopt){
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if(parse_avopts(priv->oc, mux_avopt) < 0){
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mp_msg(MSGT_MUXER,MSGL_ERR, "Your options /%s/ look like gibberish to me pal.\n", mux_avopt);
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goto fail;
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}
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}
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priv->oc->pb = av_alloc_put_byte(priv->buffer, BIO_BUFFER_SIZE, 1, muxer, NULL, mp_write, mp_seek);
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if ((muxer->stream->flags & MP_STREAM_SEEK) != MP_STREAM_SEEK)
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priv->oc->pb->is_streamed = 1;
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muxer->priv = (void *) priv;
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muxer->cont_new_stream = &lavf_new_stream;
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muxer->cont_write_chunk = &write_chunk;
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muxer->cont_write_header = &write_header;
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muxer->cont_write_index = &write_trailer;
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muxer->fix_stream_parameters = &fix_parameters;
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mp_msg(MSGT_MUXER, MSGL_INFO, "OK, exit.\n");
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return 1;
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fail:
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free(priv);
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return 0;
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}
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