Merge commit 'afa21a12bf084f905187615706b0a8d92bc98661'
[ffmpeg.git] / libavcodec / pnmenc.c
index 9b2824a10497c1ac9df47a384e522e5ee395bccf..e6c3635e7b95344965be09a1c9dc9d590455c30e 100644 (file)
 #include "libavutil/pixdesc.h"
 #include "avcodec.h"
 #include "internal.h"
-#include "pnm.h"
-
 
 static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                             const AVFrame *p, int *got_packet)
 {
-    PNMContext *s     = avctx->priv_data;
+    uint8_t *bytestream, *bytestream_start, *bytestream_end;
     int i, h, h1, c, n, linesize, ret;
     uint8_t *ptr, *ptr1, *ptr2;
 
@@ -37,9 +35,9 @@ static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
                                                        avctx->height) + 200)) < 0)
         return ret;
 
-    s->bytestream_start =
-    s->bytestream       = pkt->data;
-    s->bytestream_end   = pkt->data + pkt->size;
+    bytestream_start =
+    bytestream       = pkt->data;
+    bytestream_end   = pkt->data + pkt->size;
 
     h  = avctx->height;
     h1 = h;
@@ -81,22 +79,22 @@ static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
     default:
         return -1;
     }
-    snprintf(s->bytestream, s->bytestream_end - s->bytestream,
+    snprintf(bytestream, bytestream_end - bytestream,
              "P%c\n%d %d\n", c, avctx->width, h1);
-    s->bytestream += strlen(s->bytestream);
+    bytestream += strlen(bytestream);
     if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE) {
         int maxdepth = (1 << (av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth_minus1 + 1)) - 1;
-        snprintf(s->bytestream, s->bytestream_end - s->bytestream,
+        snprintf(bytestream, bytestream_end - bytestream,
                  "%d\n", maxdepth);
-        s->bytestream += strlen(s->bytestream);
+        bytestream += strlen(bytestream);
     }
 
     ptr      = p->data[0];
     linesize = p->linesize[0];
     for (i = 0; i < h; i++) {
-        memcpy(s->bytestream, ptr, n);
-        s->bytestream += n;
-        ptr           += linesize;
+        memcpy(bytestream, ptr, n);
+        bytestream += n;
+        ptr        += linesize;
     }
 
     if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) {
@@ -105,21 +103,38 @@ static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
         ptr1 = p->data[1];
         ptr2 = p->data[2];
         for (i = 0; i < h; i++) {
-            memcpy(s->bytestream, ptr1, n);
-            s->bytestream += n;
-            memcpy(s->bytestream, ptr2, n);
-            s->bytestream += n;
+            memcpy(bytestream, ptr1, n);
+            bytestream += n;
+            memcpy(bytestream, ptr2, n);
+            bytestream += n;
                 ptr1 += p->linesize[1];
                 ptr2 += p->linesize[2];
         }
     }
-    pkt->size   = s->bytestream - s->bytestream_start;
+    pkt->size   = bytestream - bytestream_start;
     pkt->flags |= AV_PKT_FLAG_KEY;
     *got_packet = 1;
 
     return 0;
 }
 
+static av_cold int pnm_encode_init(AVCodecContext *avctx)
+{
+    avctx->coded_frame = av_frame_alloc();
+    if (!avctx->coded_frame)
+        return AVERROR(ENOMEM);
+
+    avctx->coded_frame->pict_type = AV_PICTURE_TYPE_I;
+    avctx->coded_frame->key_frame = 1;
+
+    return 0;
+}
+
+static av_cold int pnm_encode_close(AVCodecContext *avctx)
+{
+    av_frame_free(&avctx->coded_frame);
+    return 0;
+}
 
 #if CONFIG_PGM_ENCODER
 AVCodec ff_pgm_encoder = {
@@ -127,7 +142,8 @@ AVCodec ff_pgm_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_PGM,
-    .priv_data_size = sizeof(PNMContext),
+    .init           = pnm_encode_init,
+    .close          = pnm_encode_close,
     .encode2        = pnm_encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]){
         AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE
@@ -141,7 +157,8 @@ AVCodec ff_pgmyuv_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_PGMYUV,
-    .priv_data_size = sizeof(PNMContext),
+    .init           = pnm_encode_init,
+    .close          = pnm_encode_close,
     .encode2        = pnm_encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]){
         AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE
@@ -155,7 +172,8 @@ AVCodec ff_ppm_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_PPM,
-    .priv_data_size = sizeof(PNMContext),
+    .init           = pnm_encode_init,
+    .close          = pnm_encode_close,
     .encode2        = pnm_encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]){
         AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
@@ -169,7 +187,8 @@ AVCodec ff_pbm_encoder = {
     .long_name      = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),
     .type           = AVMEDIA_TYPE_VIDEO,
     .id             = AV_CODEC_ID_PBM,
-    .priv_data_size = sizeof(PNMContext),
+    .init           = pnm_encode_init,
+    .close          = pnm_encode_close,
     .encode2        = pnm_encode_frame,
     .pix_fmts       = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,
                                                   AV_PIX_FMT_NONE },