int avpicture_layout(const AVPicture* src, enum AVPixelFormat pix_fmt, int width, int height, unsigned char *dest, int dest_size) { return av_image_copy_to_buffer(dest, dest_size, (const uint8_t * const*)src->data, src->linesize, pix_fmt, width, height, 1); }
static int decode_packet(AVPacket *packet, netcam_buff_ptr buffer, AVFrame *frame, AVCodecContext *cc) { int check = 0; int ret = avcodec_decode_video2(cc, frame, &check, packet); if (ret < 0) { MOTION_LOG(ERR, TYPE_NETCAM, NO_ERRNO, "%s: Error decoding video packet"); return 0; } if (check == 0) { // no frame could be decoded...keep trying return 0; } int frame_size = av_image_get_buffer_size(cc->pix_fmt, cc->width, cc->height, 1); /* Assure there's enough room in the buffer. */ netcam_check_buffsize(buffer, frame_size); av_image_copy_to_buffer((uint8_t *)buffer->ptr, frame_size, (const uint8_t **)(frame->data), frame->linesize, cc->pix_fmt, cc->width, cc->height, 1); buffer->used = frame_size; return frame_size; }
int cellVdecGetPicture(u32 handle, vm::ptr<const CellVdecPicFormat> format, vm::ptr<u8> outBuff) { cellVdec->Log("cellVdecGetPicture(handle=%d, format_addr=0x%x, outBuff_addr=0x%x)", handle, format.addr(), outBuff.addr()); std::shared_ptr<VideoDecoder> vdec; if (!Emu.GetIdManager().GetIDData(handle, vdec)) { return CELL_VDEC_ERROR_ARG; } VdecFrame vf; if (!vdec->frames.try_pop(vf)) { //std::this_thread::sleep_for(std::chrono::milliseconds(1)); // hack return CELL_VDEC_ERROR_EMPTY; } if (!vf.data) { // hack return CELL_OK; } if (outBuff) { u32 buf_size = a128(av_image_get_buffer_size(vdec->ctx->pix_fmt, vdec->ctx->width, vdec->ctx->height, 1)); if (format->formatType != CELL_VDEC_PICFMT_YUV420_PLANAR) { cellVdec->Todo("cellVdecGetPicture: unknown formatType(%d)", (u32)format->formatType); return CELL_OK; } if (format->colorMatrixType != CELL_VDEC_COLOR_MATRIX_TYPE_BT709) { cellVdec->Todo("cellVdecGetPicture: unknown colorMatrixType(%d)", (u32)format->colorMatrixType); return CELL_OK; } AVFrame& frame = *vf.data; // TODO: zero padding bytes int err = av_image_copy_to_buffer(outBuff.get_ptr(), buf_size, frame.data, frame.linesize, vdec->ctx->pix_fmt, frame.width, frame.height, 1); if (err < 0) { cellVdec->Error("cellVdecGetPicture: av_image_copy_to_buffer failed (err=0x%x)", err); Emu.Pause(); } } av_frame_unref(vf.data); av_frame_free(&vf.data); return CELL_OK; }
int cellVdecGetPicture(u32 handle, const mem_ptr_t<CellVdecPicFormat> format, u32 out_addr) { cellVdec->Log("cellVdecGetPicture(handle=%d, format_addr=0x%x, out_addr=0x%x)", handle, format.GetAddr(), out_addr); VideoDecoder* vdec; if (!Emu.GetIdManager().GetIDData(handle, vdec)) { return CELL_VDEC_ERROR_ARG; } if (vdec->frames.IsEmpty()) { return CELL_VDEC_ERROR_EMPTY; } if (out_addr) { u32 buf_size = a128(av_image_get_buffer_size(vdec->ctx->pix_fmt, vdec->ctx->width, vdec->ctx->height, 1)); if (format->formatType != CELL_VDEC_PICFMT_YUV420_PLANAR) { cellVdec->Todo("cellVdecGetPicture: unknown formatType(%d)", (u32)format->formatType); return CELL_OK; } if (format->colorMatrixType != CELL_VDEC_COLOR_MATRIX_TYPE_BT709) { cellVdec->Todo("cellVdecGetPicture: unknown colorMatrixType(%d)", (u32)format->colorMatrixType); return CELL_OK; } VdecFrame vf; vdec->frames.Pop(vf); AVFrame& frame = *vf.data; // TODO: zero padding bytes int err = av_image_copy_to_buffer(Memory.GetMemFromAddr(out_addr), buf_size, frame.data, frame.linesize, vdec->ctx->pix_fmt, frame.width, frame.height, 1); if (err < 0) { cellVdec->Error("cellVdecGetPicture: av_image_copy_to_buffer failed(%d)", err); Emu.Pause(); } av_frame_unref(vf.data); av_frame_free(&vf.data); } return CELL_OK; }
static int compute_crc_of_packets(AVFormatContext *fmt_ctx, int video_stream, AVCodecContext *ctx, AVFrame *fr, uint64_t ts_start, uint64_t ts_end, int no_seeking) { int number_of_written_bytes; int got_frame = 0; int result; int end_of_stream = 0; int byte_buffer_size; uint8_t *byte_buffer; int64_t crc; AVPacket pkt; byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16); byte_buffer = av_malloc(byte_buffer_size); if (!byte_buffer) { av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n"); return AVERROR(ENOMEM); } if (!no_seeking) { result = av_seek_frame(fmt_ctx, video_stream, ts_start, AVSEEK_FLAG_ANY); printf("Seeking to %"PRId64", computing crc for frames with pts < %"PRId64"\n", ts_start, ts_end); if (result < 0) { av_log(NULL, AV_LOG_ERROR, "Error in seeking\n"); return result; } avcodec_flush_buffers(ctx); } av_init_packet(&pkt); do { if (!end_of_stream) if (av_read_frame(fmt_ctx, &pkt) < 0) end_of_stream = 1; if (end_of_stream) { pkt.data = NULL; pkt.size = 0; } if (pkt.stream_index == video_stream || end_of_stream) { got_frame = 0; if ((pkt.pts == AV_NOPTS_VALUE) && (!end_of_stream)) { av_log(NULL, AV_LOG_ERROR, "Error: frames doesn't have pts values\n"); return -1; } result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt); if (result < 0) { av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n"); return result; } if (got_frame) { number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size, (const uint8_t* const *)fr->data, (const int*) fr->linesize, ctx->pix_fmt, ctx->width, ctx->height, 1); if (number_of_written_bytes < 0) { av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n"); return number_of_written_bytes; } if ((fr->pkt_pts > ts_end) && (!no_seeking)) break; crc = av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes); printf("%10"PRId64", 0x%08lx\n", fr->pkt_pts, crc); if (no_seeking) { if (add_crc_to_array(crc, fr->pkt_pts) < 0) return -1; } else { if (compare_crc_in_array(crc, fr->pkt_pts) < 0) return -1; } } } av_packet_unref(&pkt); av_init_packet(&pkt); } while ((!end_of_stream || got_frame) && (no_seeking || (fr->pkt_pts + av_frame_get_pkt_duration(fr) <= ts_end))); av_packet_unref(&pkt); av_freep(&byte_buffer); return 0; }
static int video_decode_example(const char *input_filename) { AVCodec *codec = NULL; AVCodecContext *ctx= NULL; AVCodecParameters *origin_par = NULL; AVFrame *fr = NULL; uint8_t *byte_buffer = NULL; AVPacket pkt; AVFormatContext *fmt_ctx = NULL; int number_of_written_bytes; int video_stream; int got_frame = 0; int byte_buffer_size; int i = 0; int result; int end_of_stream = 0; result = avformat_open_input(&fmt_ctx, input_filename, NULL, NULL); if (result < 0) { av_log(NULL, AV_LOG_ERROR, "Can't open file\n"); return result; } result = avformat_find_stream_info(fmt_ctx, NULL); if (result < 0) { av_log(NULL, AV_LOG_ERROR, "Can't get stream info\n"); return result; } video_stream = av_find_best_stream(fmt_ctx, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0); if (video_stream < 0) { av_log(NULL, AV_LOG_ERROR, "Can't find video stream in input file\n"); return -1; } origin_par = fmt_ctx->streams[video_stream]->codecpar; codec = avcodec_find_decoder(origin_par->codec_id); if (!codec) { av_log(NULL, AV_LOG_ERROR, "Can't find decoder\n"); return -1; } ctx = avcodec_alloc_context3(codec); if (!ctx) { av_log(NULL, AV_LOG_ERROR, "Can't allocate decoder context\n"); return AVERROR(ENOMEM); } result = avcodec_parameters_to_context(ctx, origin_par); if (result) { av_log(NULL, AV_LOG_ERROR, "Can't copy decoder context\n"); return result; } result = avcodec_open2(ctx, codec, NULL); if (result < 0) { av_log(ctx, AV_LOG_ERROR, "Can't open decoder\n"); return result; } fr = av_frame_alloc(); if (!fr) { av_log(NULL, AV_LOG_ERROR, "Can't allocate frame\n"); return AVERROR(ENOMEM); } byte_buffer_size = av_image_get_buffer_size(ctx->pix_fmt, ctx->width, ctx->height, 16); byte_buffer = av_malloc(byte_buffer_size); if (!byte_buffer) { av_log(NULL, AV_LOG_ERROR, "Can't allocate buffer\n"); return AVERROR(ENOMEM); } printf("#tb %d: %d/%d\n", video_stream, fmt_ctx->streams[video_stream]->time_base.num, fmt_ctx->streams[video_stream]->time_base.den); i = 0; av_init_packet(&pkt); do { if (!end_of_stream) if (av_read_frame(fmt_ctx, &pkt) < 0) end_of_stream = 1; if (end_of_stream) { pkt.data = NULL; pkt.size = 0; } if (pkt.stream_index == video_stream || end_of_stream) { got_frame = 0; if (pkt.pts == AV_NOPTS_VALUE) pkt.pts = pkt.dts = i; result = avcodec_decode_video2(ctx, fr, &got_frame, &pkt); if (result < 0) { av_log(NULL, AV_LOG_ERROR, "Error decoding frame\n"); return result; } if (got_frame) { number_of_written_bytes = av_image_copy_to_buffer(byte_buffer, byte_buffer_size, (const uint8_t* const *)fr->data, (const int*) fr->linesize, ctx->pix_fmt, ctx->width, ctx->height, 1); if (number_of_written_bytes < 0) { av_log(NULL, AV_LOG_ERROR, "Can't copy image to buffer\n"); return number_of_written_bytes; } printf("%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08lx\n", video_stream, fr->pts, fr->pkt_dts, fr->pkt_duration, number_of_written_bytes, av_adler32_update(0, (const uint8_t*)byte_buffer, number_of_written_bytes)); } av_packet_unref(&pkt); av_init_packet(&pkt); } i++; } while (!end_of_stream || got_frame); av_packet_unref(&pkt); av_frame_free(&fr); avcodec_close(ctx); avformat_close_input(&fmt_ctx); avcodec_free_context(&ctx); av_freep(&byte_buffer); return 0; }
static int decode_write(AVCodecContext *avctx, AVPacket *packet) { AVFrame *frame = NULL, *sw_frame = NULL; AVFrame *tmp_frame = NULL; uint8_t *buffer = NULL; int size; int ret = 0; ret = avcodec_send_packet(avctx, packet); if (ret < 0) { fprintf(stderr, "Error during decoding\n"); return ret; } while (ret >= 0) { if (!(frame = av_frame_alloc()) || !(sw_frame = av_frame_alloc())) { fprintf(stderr, "Can not alloc frame\n"); ret = AVERROR(ENOMEM); goto fail; } ret = avcodec_receive_frame(avctx, frame); if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF) { av_frame_free(&frame); av_frame_free(&sw_frame); return 0; } else if (ret < 0) { fprintf(stderr, "Error while decoding\n"); goto fail; } if (frame->format == hw_pix_fmt) { /* retrieve data from GPU to CPU */ if ((ret = av_hwframe_transfer_data(sw_frame, frame, 0)) < 0) { fprintf(stderr, "Error transferring the data to system memory\n"); goto fail; } tmp_frame = sw_frame; } else tmp_frame = frame; size = av_image_get_buffer_size(tmp_frame->format, tmp_frame->width, tmp_frame->height, 1); buffer = av_malloc(size); if (!buffer) { fprintf(stderr, "Can not alloc buffer\n"); ret = AVERROR(ENOMEM); goto fail; } ret = av_image_copy_to_buffer(buffer, size, (const uint8_t * const *)tmp_frame->data, (const int *)tmp_frame->linesize, tmp_frame->format, tmp_frame->width, tmp_frame->height, 1); if (ret < 0) { fprintf(stderr, "Can not copy image to buffer\n"); goto fail; } if ((ret = fwrite(buffer, 1, size, output_file)) < 0) { fprintf(stderr, "Failed to dump raw data.\n"); goto fail; } fail: av_frame_free(&frame); av_frame_free(&sw_frame); if (buffer) av_freep(&buffer); if (ret < 0) return ret; } return 0; }