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add libeplayer3-arm test
Origin commit data
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Branch: master
Commit: d2b5eae8f7
Author: max_10 <max_10@gmx.de>
Date: 2017-12-16 (Sat, 16 Dec 2017)
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No further description and justification available within origin commit message!
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This commit was generated by Migit
This commit is contained in:
max_10
TangoCash
210
libeplayer3-arm/container/mpeg4p2_ffmpeg.c
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210
libeplayer3-arm/container/mpeg4p2_ffmpeg.c
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//
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// mpeg4-part2 in mipsel receivers
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// http://forums.openpli.org/topic/39326-gstreamer10-and-mpeg4-part2/?hl=%2Bmpeg4+%2Bpart2
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//
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#define MPEG4P2_MAX_B_FRAMES_COUNT 5
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typedef struct
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{
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int b_frames_count;
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int first_ip_frame_written;
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int64_t packet_duration;
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AVPacket *b_frames[MPEG4P2_MAX_B_FRAMES_COUNT];
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AVPacket *second_ip_frame;
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} Mpeg4P2Context;
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static void set_packet(AVPacket **pkt_dest, AVPacket *pkt_src)
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{
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if (pkt_dest == NULL)
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return;
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if (*pkt_dest != NULL)
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{
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wrapped_packet_unref(*pkt_dest);
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av_free(*pkt_dest);
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}
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*pkt_dest = av_malloc(sizeof(AVPacket));
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av_copy_packet(*pkt_dest, pkt_src);
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}
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static int filter_packet(AVBitStreamFilterContext *bsf_ctx, AVCodecContext *enc_ctx, AVPacket *pkt)
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{
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int ret;
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AVPacket new_pkt = *pkt;
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ret = av_bitstream_filter_filter(bsf_ctx, enc_ctx, NULL,
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&new_pkt.data, &new_pkt.size,
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pkt->data, pkt->size,
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pkt->flags & AV_PKT_FLAG_KEY);
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if (ret == 0 && new_pkt.data != pkt->data)
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{
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if ((ret = av_copy_packet(&new_pkt, pkt)) < 0)
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return -1;
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ret = 1;
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}
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if (ret > 0)
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{
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pkt->side_data = NULL;
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pkt->side_data_elems = 0;
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wrapped_packet_unref(pkt);
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new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
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av_buffer_default_free, NULL, 0);
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if (!new_pkt.buf)
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return -1;
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}
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if (ret < 0)
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{
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ffmpeg_err("Failed to filter bitstream with filter %s for stream %d with codec %s\n",
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bsf_ctx->filter->name, pkt->stream_index,
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avcodec_get_name(enc_ctx->codec_id));
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return -1;
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}
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*pkt = new_pkt;
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return 0;
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}
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static void mpeg4p2_context_reset(Mpeg4P2Context *context)
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{
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if (context == NULL)
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return;
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int i;
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for (i = 0; i < MPEG4P2_MAX_B_FRAMES_COUNT; i++)
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{
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if (context->b_frames[i] != NULL)
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{
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wrapped_packet_unref(context->b_frames[i]);
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av_free(context->b_frames[i]);
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}
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context->b_frames[i] = NULL;
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}
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if (context->second_ip_frame != NULL)
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{
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wrapped_packet_unref(context->second_ip_frame);
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av_free(context->second_ip_frame);
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}
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context->second_ip_frame = NULL;
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context->b_frames_count = 0;
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context->first_ip_frame_written = 0;
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context->packet_duration = 0;
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}
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static void mpeg4p2_write(Context_t *ctx, Track_t *track, int avContextIdx, int64_t *currentVideoPts, int64_t *latestPts, AVPacket *pkt)
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{
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*currentVideoPts = track->pts = calcPts(avContextIdx, track->stream, pkt->pts);
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if ((*currentVideoPts > *latestPts) && (*currentVideoPts != INVALID_PTS_VALUE))
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{
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*latestPts = *currentVideoPts;
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}
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track->dts = calcPts(avContextIdx, track->stream, pkt->dts);
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AudioVideoOut_t avOut;
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avOut.data = pkt->data;
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avOut.len = pkt->size;
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avOut.pts = track->pts;
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avOut.dts = track->dts;
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avOut.extradata = track->extraData;
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avOut.extralen = track->extraSize;
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avOut.frameRate = track->frame_rate;
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avOut.timeScale = track->TimeScale;
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avOut.width = track->width;
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avOut.height = track->height;
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avOut.type = "video";
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if (ctx->output->video->Write(ctx, &avOut) < 0)
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{
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ffmpeg_err("writing data to video device failed\n");
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}
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}
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static int mpeg4p2_write_packet(Context_t *ctx, Mpeg4P2Context *mpeg4p2_ctx, Track_t *track, int cAVIdx, int64_t *pts_current, int64_t *pts_latest, AVPacket *pkt)
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{
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uint8_t *data = pkt->data;
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int data_len = pkt->size;
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int pos = 0;
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if (mpeg4p2_ctx->packet_duration == 0)
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{
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mpeg4p2_ctx->packet_duration = pkt->duration;
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}
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while (pos < data_len)
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{
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if (memcmp(&data[pos], "\x00\x00\x01\xb6", 4))
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{
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pos++;
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continue;
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}
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pos += 4;
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switch ((data[pos] & 0xC0) >> 6)
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{
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case 0: // I-Frame
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case 1: // P-Frame
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if (!mpeg4p2_ctx->first_ip_frame_written)
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{
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mpeg4p2_ctx->first_ip_frame_written = 1;
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pkt->pts = pkt->dts + mpeg4p2_ctx->packet_duration;
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ffmpeg_printf(100, "Writing first I/P packet\n");
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mpeg4p2_write(ctx, track, cAVIdx, pts_current, pts_latest, pkt);
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return 0;
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}
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else if (!mpeg4p2_ctx->second_ip_frame)
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{
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set_packet(&mpeg4p2_ctx->second_ip_frame, pkt);
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return 0;
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}
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else
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{
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if (!mpeg4p2_ctx->b_frames_count)
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{
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mpeg4p2_ctx->second_ip_frame->pts = mpeg4p2_ctx->second_ip_frame->dts + mpeg4p2_ctx->packet_duration;
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ffmpeg_printf(100, "Writing second I/P packet(1)\n");
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mpeg4p2_write(ctx, track, cAVIdx, pts_current, pts_latest, mpeg4p2_ctx->second_ip_frame);
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set_packet(&mpeg4p2_ctx->second_ip_frame, pkt);
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return 0;
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}
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else
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{
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mpeg4p2_ctx->second_ip_frame->pts = mpeg4p2_ctx->b_frames[mpeg4p2_ctx->b_frames_count - 1]->dts + mpeg4p2_ctx->packet_duration;
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mpeg4p2_ctx->b_frames[0]->pts = mpeg4p2_ctx->second_ip_frame->dts + mpeg4p2_ctx->packet_duration;
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int i;
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for (i = 1; i < mpeg4p2_ctx->b_frames_count; i++)
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{
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mpeg4p2_ctx->b_frames[i]->pts = mpeg4p2_ctx->b_frames[i - 1]->dts + mpeg4p2_ctx->packet_duration;
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}
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ffmpeg_printf(100, "Writing second I/P packet(2)\n");
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mpeg4p2_write(ctx, track, cAVIdx, pts_current, pts_latest, mpeg4p2_ctx->second_ip_frame);
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set_packet(&mpeg4p2_ctx->second_ip_frame, pkt);
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for (i = 0; i < mpeg4p2_ctx->b_frames_count; i++)
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{
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ffmpeg_printf(100, "Writing B-frame[%d]\n", i);
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mpeg4p2_write(ctx, track, cAVIdx, pts_current, pts_latest, mpeg4p2_ctx->b_frames[i]);
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}
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mpeg4p2_ctx->b_frames_count = 0;
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return 0;
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}
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}
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break;
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case 3: // S-Frame
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break;
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case 2: // B-Frame
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if (!mpeg4p2_ctx->second_ip_frame)
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{
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ffmpeg_err("Cannot predict B-Frame without surrounding I/P-Frames, dropping...");
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return 0;
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}
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if (mpeg4p2_ctx->b_frames_count == MPEG4P2_MAX_B_FRAMES_COUNT)
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{
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ffmpeg_err("Oops max B-Frames count = %d, reached", MPEG4P2_MAX_B_FRAMES_COUNT);
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// not recoverable, to fix just increase MPEG4P2_MAX_B_FRAMES_COUNT
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return -1;
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}
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else
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{
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ffmpeg_printf(100, "Storing B-Frame\n");
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set_packet(&mpeg4p2_ctx->b_frames[mpeg4p2_ctx->b_frames_count++], pkt);
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return 0;
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}
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case 4:
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default:
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break;
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}
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}
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return 0;
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}
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